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Neutral 17-Ketosteroids And 17, 21-Dihydroxy-20-Ketosteroids In Urine Of University Students, Shon-Hua Yu

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Degenerative disease of old age such as atherosclerosis and cerebral hemorrhage appear to be related to abnormal lipid metabolism. Many investigators have studied the role of steroid hormones on lipid and cholesterol metabolism in rats and chickens. The results have consistantly indicated that both corticosteroids and sex hormones play an important role in the regulation of lipid and cholesterol metabolism, in vivo. Serum cholesterol values in humans have been decreased by estrogens, while androgen administration tends to increase circulating cholesterol. Estrogens have been shown to decrease circulating cholesterol and prevent cholesterol-induced coronary atherosclerosis in chickens. A study of the …

Cost Of Reclaiming Pinyon-Juniper Rangeland And Its Effect On Cattle Ranch Income, John William Adams

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

There was a period during the early history of Utah when grasses in some areas grew so tall that it hid grazing cattle and sheep from view. However, mismanagement caused this to change and depleted grassland was invaded by noxious weeds, sagebrush, and pinyon-juniper. This deterioration of choice grassland to less desirable range cover was aided by the attitude of stockmen that pasture was available on a first come first serve basis. As a result of such an attitude and the unsatisfactory condition of ranges, the era of free, uncontrolled use of grazing lands came to a close with the …

Estimation Of Optimum Size, Shape, And Replicate Number Of Safflower Plots For Yield Trials, David Ernest Polson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The success of a breeding program depends upon the ability of the plant breeder to not only develop new lines, but also to determine which lines or varieties are superior. For this purpose, yield trials are an important yardstick for determining the value of the trial in assessing the merits of the different lines.

Variation encountered is due to several factors; with true genetic differences, environment, and human error being of major importance. In order for yield trials to give meaningful information on a line or variety, it is essential that variation due to human error and environment be reduced …

Weight Reduction Problems As Shown By A Review Of Literature And A Survey Of Weight Reduction Groups, Naomi Jensen

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

America has been known throughout its history as a land of plenty . Enough food to feed a rapidly increasing population has been produced continuously . Scientific progress has made it possible for fewer farm workers to produce larger amounts of food both from increased acreage and increased yield per acre . With today's nationwide network of distribution , these foods have been made available throughout all sections of the country . Modern science and industry have taken over many of the processing duties of the homemaker and have done it on a less expensive and a much safer scale. …

Some Effects Of Accumulated Radium On The Productivity Of Algae, Joseph W. Angelovic

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Ionizing radiation from natural occurring radionuclides and cosmic rays has always been a part of man's environment, but at such low levels as to have had virtually no effect. However, with the advent of the atomic age and the advancement of nuclear technology, background activity has measurably increased all over the world. Fallout from nuclear weapons testing, wastes from nuclear reactors, and wastes from the milling of radioactive ores have all contributed to this increase. Due to this increase, many ecosystems and their individual components are now subjected to radiation levels as high as a million times natural background. What …

Effects Of Pre- And Post-Harvest Applications Of 6-Furfurylaminopurine And N6-Benzyladenine On Physio-Chemical Changes In Lettuce (Lactuca Sativa L.), Hussein Ibrahim El-Mansy

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The extent and nature of physio-chemical changes that take place in detached leaves after harvest and during storage have been reviewed and discussed by Osborne (1962) and Rogers (1955). These changes include loss of moisture (Wittwer et al., 1962), chlorophyll degredation (Person et al., 1957), Protein loss (Thimann and Manmahan, 1960), and result in subsequent appearance of the visual manifestations of senescence of plant tissues.

As lettuce, like most leafy vegetables, deteriorates rapidly and steadily after harvest. Loss of quality is inevitable and can only be minimized by rapid handling and with the best possible storage conditions (Pratt …

Some Functions In The Theory Of Neutron Logging, L. S. Allen, C. W. Tittle

Journal of the Graduate Research Center

The solution to the one-energy-group diffusion equation for the case of a point neutron source on the axis of two concentric cylindrical media has been programmed for a digital computer. Numerical results for a wide range of values of diffusion length and diffusion coefficient for the outer medium, and for four radii of the inner cylinder are presented. The outer radius in all cases is effectively infinite.

On-The-Farm Swine Selection, L. J. Kortan

SDSU Extension Circulars

In attempts to make selection more effective, swine breeders have become increasingly conscious of the importance of a good swine breeding program and of the part that heredity plays in improving performance and carcass quality. Breeders no longer select breeding stock on the basis of sight alone. Modern selection programs emphasize performance records and carcass cut-out values. This is desirable because research has indicated that visual inspection alone cannot identify animals which are genetically superior. Good feeding and management can result in larger, faster growing litters. However, these improvements in nutrition and management do not become a part of a …

The Effect Of Fiber Length And Degree Of Fibrillation On Water Removal By Wet Pressing, John C. Walkush

Paper Engineering Senior Theses

The amount of water ·in paper determines indirectly the strength of it by dictating what type of bonds are formed between fibers. The less water in paper the stronger it is. Wet pressing is considered in detail as one method of water removal to determine what factors affect the amount of water removal since this would indirectly affect the development of paper strength. Specifically, the effect of fiber length and the degree of fibrillation was studied. It was found that as fiber length decreases the amount of water that can be removed decreases and that as the degree of fibrillation …

Congenital Erythroblastic Hypoplasia: Treatment Of Transfusion Hemosiderosis With Desferrioxamine B, Frank J. Hildner, Raymond W. Monto, John W. Rebuck

Henry Ford Hospital Medical Journal

No abstract provided.

Massive Hemorrhage From Sarcoid Ulcers In The Stomach, J. J. Ramirez, Joseph L. Ponka, W. S. Haubrich

Henry Ford Hospital Medical Journal

No abstract provided.

Turner's Syndrome In Males, Pierre Caron, William C. Mieher, Raymond C. Mellinger, Edward W. Green

Henry Ford Hospital Medical Journal

No abstract provided.

Comparative Behavior And Relationships Of The Eiders, Paul A. Johnsgard

Papers in Ornithology

Pair-forming and copulatory displays of the four species of eiders are described and illustrated, based on observations of captive and wild specimens. Behavioral differences indicate that two genera (Polysticta and Somateria) of eiders should be recognized, and that Lamponetta should be considered a synonym of Somateria. Racial differences in the displays of Somateria mollissima mollissima and S. m. v. nigra are explained on the basis of sympatry between the latter and S. fischeri, producing selection for display divergence that has not affected S. m. mollissima. Similarities in the behavior patterns of the eiders and the …

Fertilizer-Insecticide Mixtures On Tobacco Plant Beds And Fields, George D. Corder, R. L. Miller

Agronomy Notes

Fertility and insect control programs have a major influence on tobacco production. The proper amounts and kinds of fertilizers and insecticides properly placed will make production more economical on beds and fields if either or both are needed.

Is a fertilizer-insecticide mix the best way to meet the fertility needs and t he insecticide needs on tobacco? The following questions and answers should help show how the decision was reached that this method is not recommended.

Henry George In England, Milton A. Ochsner

Journal of the Minnesota Academy of Science

The forward rush of the Industrial Revolution had already by the tum of the 19th century silenced the hand looms in England and sent their operators to the city and its factories. Once there, the masses and their government fell prey to all the problems attendant to rapid and disorderly industrialization of which high rent, periodic unemployment, and labor unrest were just a few. The fundamental homogeneous outlook which the British had always somehow maintained in the face of other crises was now threatened anew. This was a new misery that gripped the land. It struck hardest at those who …

Acid Hydrolysis Of 3-Phenylsydnone-2-N15 / Joanne Staley And Donald D. Clarke Chemistry Department, Fordham University, Bronx, New York, Joanne Staley, Donald Dudley Clarke Phd

Chemistry Faculty Publications

When N -phenylsydnone is hydrolyzed by acid, an internal oxidation- reduction reaction takes place with the formation of phenylhydrazine, formic acid, and carbon dioxide. The mechanism shown below was suggested for this reaction by Baker and Ollis. Aside from the nature of the end products of this hydrolysis, the strongest evidence cited by Baker and Ollis in support of their mechanism is the paper by Kenner and Mackay who reported the isolation of a-acylhydrazines when the hydrolysis was carried out in benzene with stoichiometric quantities of water and hydrochloric acid. However, Kenner and Mackay gave no experimental evidence to support …

Quantitative Aspects Of Co2 Fixation In Mammalian Brain In Vivo / H. Waelsch, S. Berl, C.A. Rossi, D. D. Clarke, And D. P. Purpura New York State Psychiatric Institute And Departments Of Biochemistry And Neurological Surgery, College Of Physicians And Surgeons, Columbia University, New York, N.Y., Heinrich Waelsch, Soll Berl, C. A. Rossi, Donald Dudley Clarke Phd

Chemistry Faculty Publications

The rate of fixation of carbon dioxide in vivo into aspartate, glutamate, oxoglutarate, and glutamine of cerebral cortex and liver in the absence and presence of elevated concentrations of tissue ammonia was studied. The specific activities of the isolated metabolites were related to the specific activity of the tissue CO2. It was attempted to obtain an approximate steady state level of tissue 14CO2 by maintaining a constant isotope concentration in the venous and arterial blood through continuous intravenous administration of NaH14CO3. 1. In the absence of ammonia, aspartic acid achieved the highest specific activity in both brain and liver; the …

George Barclay And The "California" Portion Of The Botany Of The Sulphur, Peter H. Raven

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

The Causes And Control Of Infertility Of Rams, J Craig

Journal of the Department of Agriculture, Western Australia, Series 4

FACTORS other than physical faults often cause infertility of rams.

Obviously, it is important to distinguish between temporary and permanent infertility to apply the proper remedy.

Annual Meeting Minutes: 1964

Cherry County (Nebraska) Extension: Historical Documents

Extension Board Minutes from:

October 8, 1964

May 6, 1964

January 3, 1964

Extension Service Budget

Dry-Plains Conservation: An Activity Or Experimental Method Of Teaching Soil And Water Conservation In Southwestern Dry-Plains Natural Science Classrooms., David W. Pierson

Fort Hays Studies Series

This paper is an attempt to provide teachers in the dry-plains regions with certain concepts and techniques believed to be of value in assisting students to develop an understanding of the uniqueness of their environment. While most of the activities, experiments, and demonstrations were first organized for a biology class, many of them should be suitable for use in other classes which involve the natural sciences.

Linseed Variety Trials, 1963-64 Season, J T. Reeves

Journal of the Department of Agriculture, Western Australia, Series 4

RESULTS of 1963-64 linseed variety trials are available for four trials on research stations and for four trials on farmers' properties.

These are shown in the table below. Excellent yields were obtained at some sites, while disappointing results were obtained at Chapman and Esperance.

Poor results at Esperance were due to the poor finish to the season.

Comparative Behavior And Relationships Of The Eiders, Paul A. Johnsgard

Papers in Ornithology

One of the more controversial systematic problems existing in the family Anatidae concerns the taxonomic rank and evolutionary relationships of the four species of eiders, which are currently considered by the American Ornithologists’ Union (1957) to comprise three genera (Somateria, Lampronetta, and Polysticta) in the diving duck subfamily Aythyinae. In 1945, however, Delacour and Mayr included the eiders in a single genus (Somateria) within the sea duck tribe Mergini. At present, Delacour (1959) considers the eiders a separate tribe, Somateriini, distinct from the other sea ducks, and placed near the dabbling duck tribe Anatini. The erection …

Private Nonindustrial Ownership Of Forest Land: An Economic Theory Of Owner Motivation And Management Intensity, Robert O. Mcmahon

Yale School of the Environment Bulletin Series

No abstract provided.

The Diversion Of Macromolecular Synthesis In L-Cells Towards Ends Dictated By Mengovirus, David Baltimore

Student Theses and Dissertations

The last few years have seen the beginnings of biochemical and physiological studies on animal virus multiplication. Work of this kind with bacterial viruses had begun in the early 1950's and provided much information before research on animal viruses was initiated. The delay in the study of animal systems was due to the great difficulties which attended the development of methods of cell culture and of quantitative virology. The solution of these problems, through the painstaking work of T. Puck, H. Eagle, R. Dulbecco and their associates, has made possible the recent rapid advance in our knowledge of the rare …

Saffron Thistle, B J. Quinlivan, H. A. Pearce

Journal of the Department of Agriculture, Western Australia, Series 4

Saffron thistle is a declared primary noxious weed in Western Australia and is especially troublesome in the northern agricultural areas.

Field trials aimed at finding the cheapest and most effective method of controlling the weed have shown that 2,4-D applied at the correct stage is the best chemical to use.

One Shot Baiting, C D. Gooding, L. A. Harrison

Journal of the Department of Agriculture, Western Australia, Series 4

THE Agriculture Protection Board introduced the first of its contract poisoning schemes in 1955 in the lower South-West when three units undertook the first "1080" poisoning for farmers in Western Australia.

The originators of one-shot baiting describe this new technique and explain how it should be used for best results on the farm.

The Levy Nest : A Useful Aid To Farrowing, P Mcnamara

Journal of the Department of Agriculture, Western Australia, Series 4

The levy farrowing nest which has given good results in England is a recent innovation in Australia.

It could be well adapted for W.A. conditions and is described here by Pig Husbandry Adviser Mr. P. McNamara, B.A. (Cantab.).

Establishing Wheatbelt Pastures? Don't Use A Cover Crop, J A C Smith, D. B. Argyle

Journal of the Department of Agriculture, Western Australia, Series 4

One of the factors which influence the establishment of improved pasture in the West Australian wheatbelt is whether the pasture legume is sown with a cover crop or not.

Mediocre establishment can follow when a cover crop is used and it is recommended that, for rapid establishment, any pasture legume should be sown without a cover crop.

Carton Packs For Granny Smith Apples, J S. Bloomfield

Journal of the Department of Agriculture, Western Australia, Series 4

THE demand for bruise-free apples by overseas buyers has been mainly responsible for the development of fibre board cartons as export apple containers.