Digital Commons Network^™

Physics, Chapter 20: Wave Motion, Henry Semat, Robert Katz

Robert Katz Publications

Wave motion is an important method of transferring energy from one place to another without involving the actual transfer of matter. When a pebble is dropped into a still pool, some of the kinetic energy of the pebble is used to generate the ripples which spread out in all directions over the surface of the pool. When the ripples pass by a floating object, such as a bit of cork, the cork bobs up and down, having acquired its kinetic energy of vibration from the ripple system. The ripples thus serve to deliver some of the energy of the pebble …

Physics, Chapter 41: Polarized Light, Henry Semat, Robert Katz

Robert Katz Publications

The phenomena of interference and diffraction show that light is propagated as a wave motion, but they do not show whether light is a longitudinal wave or a transverse wave. The fact that the velocity of light is the same as the velocity of radio waves and the radiation of visible light from accelerated electrons, as in a betatron, indicates that light is an electromagnetic wave. We recall from Section 20-9 that a wave can be shown to be transverse if a device can be found which will prevent passage of the wave in one orientation and will allow the …

Physics, Chapter 40: Light As A Wave Motion, Henry Semat, Robert Katz

Robert Katz Publications

Let us recount some of the characteristics of the motion of particles and the propagation of waves, with a view toward analyzing the behavior of light. In accordance with Newton's first law, a particle moves in a straight-line path in the absence of external forces. Thus we might infer, as Newton suggested, that light is composed of particles, and that, in a continuous medium, there is no deflecting force on the light particles. At the interface between two media, light may be propagated in a straight line parallel to the interface. Thus even at an interface there is no force …

Physics, Chapter 38: Mirrors And Lenses, Henry Semat, Robert Katz

Robert Katz Publications

A spherical mirror consists of a small section of the surface of a sphere with one side of the surface covered with a polished reflecting material, usually silver or aluminum. If the outside, or convex surface, is silvered, we have a convex mirror; if the inside, or concave surface, is silvered, we have a concave mirror, as shown in Figure 38-1. Most mirrors used commercially are made of glass, with the rear surface silvered and then coated with a layer of paint or lacquer for protection. Mirrors for astronomical telescopes (')f other accurate scientific work are provided with a reflective …

A New Genus Of Monogenetic Trematode (Family Diclidophoridae) From A New Zealand Fish, Harold W. Manter, Gail Walling

Harold W. Manter Laboratory of Parasitology: Faculty Publications

These monogeneans were collected by Harold W. Manter in Wellington, New Zealand, in 1951 from the gills of Seriolella brama (Günther), the warehou (Family Nomeidae). A study of the three specimens collected indicates they belong to a new genus of the family Diclidophoridae, subfamily Cyclocotylinae.

Engineer Intelligence Guide 13, Glossary Of Natural Terrain Features, November 1957, Army Map Service, Robert Bolin , Depositor

United States Department of Defense Military Intelligence

To paraphrase the introduction, this glossary of natural terrain features is intended as a reference for military personnel and others who may use terrain studies. It also many serve as a guide to producers of Engineer terrain studies by standardizing and restricting the use of technical terms. It includes terms from many fields including physical geography, geology, hydrography, galciology, botany, and pedology. This is an alphabetic list of terms keyed to three appendices. The appendices are line drawings illustrating various sorts of terrain features. Where a term is shown on one of the appendices the number of the appendix and …

The Poetic Style Erich Kastner, John Winkelman

University Studies (University of Nebraska) (1888–1984)

The existing studies of the poetry of Erich Kiistner deal almost exclusively with aspects of its content, whether in an ideational or a concrete sense, and have at best only peripheral reference to the esthetic realization of this content. That is, these studies consider the poems primarily in their function as means of communication or even as unwitting autobiography, and in effect ignore the poems in order to "penetrate" to that which they communicate or reveal.

Yet the relation of external and internal in any esthetic object is just the reverse: one would have to penetrate past that which the …

Studies On The Helminth Fauna Of Alaska. Xxxi. Observations On The Propagation Of The Larval Echinococcus Multilocularis Leuckart, 1863, In Vitro, Robert L. Rausch, Virginia Jentoft

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Larval reproduction in Echinococcus multilocularis Leuckart, 1863, takes place through the proliferation of exogenous secondary vesicles (Rausch, 1954). In some species of host this process appears to be continual, extending over a long period of time with little tendency for self-limitation. Consequently, the growth characteristics of this larval cestode are such that it would seem well suited to culture in vitro.

Gyrodactylus Eucaliae N. Sp. (Trematoda: Monogenea) From The Brook Stickleback, Eucalia Inconstans*, Glenn L. Hoffman, Francis M. Ikezaki

United States Fish and Wildlife Service: Publications

A new species of Gyrodactylus was observed on the skin, gills, and fins of the brook stickleback from the English Coulee, Grand Forks, North Dakota during the summers of 1953-1955. Host-specificity is usually striking in the monogenetic trematodes and since this parasite was not observed on any other species of fish from this body of water or the nearby Turtle River, it was studied in detail and is here described as a new species, G. eucaliae.

The Coexistence Of Pathogens And Pseudomonads In Soluble Oil Emulsions, R. Samuel-Maharajah, Hilliard Pivnik, W.E. Engelhard, Sheila Templeton

Papers in Microbiology

This investigation is concerned primarily with the growth and virulence of pathogenic bacteria introduced into soluble oil emulsions. The soluble oils are petroleum or fatty oils emulsified with soaps of petroleum sulfonic acids, naphthenic acids, fatty acids, rosin, or tall oil. When mixed with water, the soluble oils form stable oil-in-water emulsions and, as such, are used in machine shops as coolants and lubricants in the cutting and grinding of metals. Unfortunately, they serve as excellent substrates for the growth of bacteria.

False Smut Of Buffalograss, John L. Weihing

Nebraska Agricultural Experiment Station: Historical Research Bulletins

False smut of buffalograss, Buchloe dactyloides (Nutt.) Engelm., caused by Cercospora seminalis Ell. & Ev. is a disease that destroys the unfertilized ovary. The disease was first reported by J. B. Ellis and B. M. Everhart in 1888. They gave only a brief description of the disease and named the causal fungus Cercospora seminalis. There are no etiological studies of false smut recorded in the literature. The origin of the term "false smut" is unknown to the author, but it so descriptively fits the general appearances of the disease that one readily understands its usage. The following studies were …

Annual Report:1956

Cherry County (Nebraska) Extension: Historical Documents

Annual Program & Accomplishments, 1956 ........................ 22

Beef Tips the Scale ........................ 4

Budget Estimate ........................ 26

Buyers Bump Bangs ........................ 4

Cherry County Extension Districts (Map) ........................ 2

Cherry County 4-H Clubs (Map) ........................ 21

Clarke-McNary Forestry Cooperators (Graph) ........................ 10

Colorful Clovers Net Heavy Returns ........................ 6

Distribution of Windbreak Plantings (Map) ........................ 12

Farm Labor (Graph) ........................ 15

Fertilized Corn in Cherry County ........................ 6

Free Choice ........................ 16

History of Enrollments & Completions (Graph) ........................ 20

Inventory of Equipment ........................ 27

Livestock Roundup ........................ 5

Long Range Objectives ........................ 31

More Feed From Range & Pasture …

Field Manual Fm 55-8, Transportation Intelligence, October 1956, Robert Bolin , Depositor

United States Department of Defense Military Intelligence

This is a manual describing the transportation intelligence activities of the Army in the mid-1950s. A more accurate title would be “Transportation Corps Intelligence” since the Army technical services were responsible for intelligence related to their field of expertise in the 1950s.

The modern US Army vision of the technical intelligence developed during World War II. Shortly before World War II, Army Technical Services had been instructed to set up intelligence sections in the offices of their chiefs. The technical services were bureaus which supplied weapons, equipment, and services to the Army, managed the careers of officers in a particular …

The Journalist And His Confidential Source: Should A Testimonial Privilege Be Allowed, W. D. Lorensen

Nebraska Law Review

Introduction

The Basis for a Privilege

The Current Law

When Is the Public Benefited?

When Should This Privilege Be Denied?

When Is There No Public Benefit?

When Does Detriment Outweigh Benefit?

Conclusion

Streak Mosaic Of Wheat In Nebraska And Its Control, R. Staples, W. B. Allington

Nebraska Agricultural Experiment Station: Historical Research Bulletins

This bulletin reports the results of studies on the epidemiology of wheat streak mosaic under Nebraska conditions. Particular attention is given to the occurrence and certain characteristics of the mite vector of the virus, the relation of weather and other factors to some of its activities, a correlation of certain mite situations with epidemics of the disease, and recommendations for disease control.

Ec56-505 Creative Design, Jean Stange

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 56-505: This is about creative design. Discusses the importance of design, what design is, and examples of structural and decorative design.

Rb56-180 False Smut Of Buffalograss, John L. Weihing

University of Nebraska-Lincoln Extension: Historical Materials

False smut of buffalograss, Buchloe dactyloides (Nutt.) Engelm., caused by Cercospora seminalis Ell. & Ev. is a disease that destroys the unfertilized ovary. The disease was first reported by J. B. Ellis and B. M. Everhart in 1888. They gave only a brief description of the disease and named the causal fungus Cercospora seminalis. The origin of the term "false smut" is unknown to the author, but it so descriptively fits the general appearances of the disease that one readily understands its usage. The following studies were conducted from 1950 to 1954.

Field Manual Fm 30-16, Technical Intelligence, 26 August 1955, Robert Bolin , Depositor

United States Department of Defense Military Intelligence

This manual outlines responsibilities for technical intelligence at all levels in the Army from the top level to units in the field. It discusses technical intelligence training, processing, and operations.

The modern US Army vision of the technical intelligence developed during World War II. The importance of studying foreign military equipment had become apparent and procedures for collecting and evaluating of equipment had been developed. Technical Intelligence procedures and organizations were refined during the cold war and Korean War. Period.

This manual represents a mature picture of Army technical intelligence as it was in the mid-1959s from the viewpoint of …

Pustule Formation By Lactobacilli On Fermented Vegetables, T.L. Thompson, W.E. Engelhard, Hilliard Pivnik

Papers in Microbiology

Genuine dill pickles are the product resulting from the fermentation, predominantly lactic, of cucumbers immersed in a brine containing 3 to 4 per cent salt. The brine also contains dill weed and may contain spices and garlic or extracts of their essential oils. Genuine dill tomatoes are manufactured from green tomatoes by a fermentation similar to that used for pickles (Fabian and Wadsworth, 1944).
Lactobacillus plantarum is commonly associated with the fermentation of pickles (Pederson, 1936), although other lactobacilli and some yeasts undoubtedly play a role. A survery of the literature failed to uncover any reports concerning the microbial flora …

Annual Report: 1955

Cherry County (Nebraska) Extension: Historical Documents

Annual Program & Accomplishments ........................ 14

Budget Estimate ........................ 18

Cherry County Extension Districts (Map) ........................ 19

Cherry County 4-H Club Committee ........................ 13

Cherry County 4-H Clubs (Map) ........................ 38

Cherry County Non-Stock Cooperative Labor Association ........................ 12

Clarke-McNary Forestry Cooperators (Graph) ........................ 71

Community Development & Public Affairs ........................ 86

Crop Production ........................ 39

Distribution of Tree Plantings (Map) ........................ 72

Farm Buildings & Mechanical Equipment ........................ 75

Farm Labor (Graph) ........................ 74

Feature Story ........................ 88

Foods & Nutrition, Health, Family Life & Safety ........................ 82

Form of Organization ........................ 20

4-H Club Work ........................ 32

History …

Ec54-1200 Woody Ornamentals And Their Use, Victor J. Miller

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 54-1200 Woody Ornamentals and Their Use

It discusses the benefits of woody ornamentals and explains benefits and interesting facts on specific ones. It also gives tips on how to correctly plant woody ornamentals.

The Production Of 2, 3-Butanediol By Fermentation Of Sugar Beet Molasses, Keith B. Mccall, Carl E. Georgi

Papers in Microbiology

The production of 2,3-butanediol from natural materials by fermentation offers a practical and economical method for obtaining appreciable quantities of this important chemical. A variety of substrates have been used satisfactorily such as wood hydrolyzates (Perlman,1944), wheat (Katznelson, 1944.; Ledingham et al., 1945; Ward et al., 1945) and corn (Ward et al., 1945). The use of several grades of beet molasses prepared from home-grown beets has been reported by British (Freeman and Morrison, 1947) and Canadian workers (Anastassiadis and Wheat, 1953). Excellent yields were obtained which compared favorably with those resulting from the use of pure sucrose.

Although the characteristics …

Annual Report: 1954

Cherry County (Nebraska) Extension: Historical Documents

Annual Program & Accomplishments ........................ 14

Budget Estimate ........................ 17

Cherry County Extension Districts (Map) ........................ 18

Cherry County 4-H Clubs (Map) ........................ 33

Cherry County 4-H Committee ........................ 13

Cherry County Non-Stock Cooperative Labor Association ........................ 12

Clark-McNary Forestry Cooperators (Graph) ........................ 67

Community Development & Public Affairs ........................ 80

Crop Production ........................ 35

Distribution of Windbreak Plantings (Map) ........................ 68

Farm Buildings & Mechanical Equipment ........................ 69

Farm Business Management ........................ 69

Farm Labor (Graph) ........................ 55

Feature Story ........................ 84

Foods & Nutrition, Health, Family Life & Safety ........................ 77

Form of Organization ........................ 19

4-H Club …

Indexes To Volume 33, 1954

Nebraska Law Review

Index by Authors

Index by Titles

Index — Digest

Ec2019 Rural Youth : Officers Training And Program Planning Manual, Frank Sibert

University of Nebraska-Lincoln Extension: Historical Materials

E.C. 2019. This circular is about the responsibility of the officers in the Rural Youth Program. It also talks about meeting conduction, program development, and program content.

Secretion Of Amylase By Rumex Virus Tumors In Vitro, L. G. Nickell, M. K. Brakke

Department of Plant Pathology: Faculty Publications

The secretion of extracellular enzymes by intact cells of higher plants apparently is a rare occurrence. One example of it is the secretion of an extra, cellular amylase by the tissue of a virus-induced tumor from the root of Rumex wetosa L. An amylase is secreted in sufficient quantities by this tissue to enable it to grow as well in vitro on a starch-containing medium as on one containing sucrose.

Ec622 Revised 1953 Raising Dairy Calves, C. W. Nibler, P. L. Kelly

University of Nebraska-Lincoln Extension: Historical Materials

Extension circular 622R1953 is a revision of the 1941 revision of this circular. It generalizes the information to raising dairy calves.

Studies On The Helminth Fauna Of Alaska. Xiii. Disease In The Sea Otter, With Special Reference To Helminth Parasites, Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty Publications

During the spring of 1951, the U. S. Fish and Wildlife Service undertook the removal of sea otter, Enhydra lutris (L)., from the Aleutian Island of Amchitka, for the purpose of restocking range from which the animals have long been exterminated. The decision to undertake this activity was influenced by the nature of military operations planned for the island later the same year. The capture and removal of the otter were under the supervision of Mr. Robert D. Jones, Biologist, U. S. Fish and Wildlife Service. Heavy losses among the animals shortly after capture made the venture unsuccessful. Many deaths …

Annual Report: 1953

Cherry County (Nebraska) Extension: Historical Documents

Annual Program & Accomplishments ........................ 14

Budget Estimate ........................ 17

Cherry County Extension Districts (Map) ........................ 18

Cherry County 4-H Clubs (Map) ........................ 31

Cherry County 4-H Committee ........................ 13

Cherry County Non-Stock Cooperative Labor Association ........................ 12

Clarke-McNary Forestry Cooperators (Graph) ........................ 66

Community Development & Public Affairs ........................ 82

Crop Production ........................ 33

Distribution of Windbreak Plantings (Map) ........................ 67

Farm Buildings & Mechanical Equipment ........................ 72

Farm Labor (Graph) ........................ 58

Farm Management ........................ 68

Feature Story ........................ 90

Foods & Nutrition, Health, Family Life & Safety ........................ 80

Form of Organization ........................ 19

4-H Club Work …

Table Of Contents, Vol. 33, No. 2, 1953

Nebraska Law Review

No abstract provided.