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Structural Performance Of A Precast Prestressed Concrete Composite Pavement On U.S. Highway 14 - Bypass, Eugene A. Dietz Jan 1972

Structural Performance Of A Precast Prestressed Concrete Composite Pavement On U.S. Highway 14 - Bypass, Eugene A. Dietz

Electronic Theses and Dissertations

Between 1962 and 1970, five Master of Science Candidates in Civil Engineering at South Dakota State University have written theses on the feasibility, performance, and cost of prestressed concrete pavements. In 1962 Gorsuch conducted laboratory tests on the structural performance of precast panels. By using half-scale panels with dimensions 12 feet long, 2 feet wide and 2 inches thick, he determined that when the panels were laid in the transverse direction they acted as a single slab and behaved elastically beyond the yield point. Kruse made further laboratory tests in 1966 to evaluate the feasibility of prestressed pavement and make …

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Similitude Study Of Airflow Characteristics And Evaluation Of Ridge Vent Design For An Open Front Confinement Beef Barn, Ivar R. Dybwad Jan 1972

Similitude Study Of Airflow Characteristics And Evaluation Of Ridge Vent Design For An Open Front Confinement Beef Barn, Ivar R. Dybwad

Electronic Theses and Dissertations

Predictions for the future indicate that beef cattle production will continue to increase. The U. S. Department of Agriculture has estimated that the demand for red meat would increase by over 60 per cent between 1958 and 1975. Beef consumption in the United States is 80 to 85 pounds per capita per year. However, some light meat, turkey and chicken will be substituted for red meat, but due to the continuing increase in human population, the production of beef will have to increase to meet the domestic need. Following the trend of the last few years, more beef cattle production …

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A Study Of Selected Factors Associated With Environmental Attitudes Of Big Stone Lake Area Residents, Bradford George Perry Jan 1972

A Study Of Selected Factors Associated With Environmental Attitudes Of Big Stone Lake Area Residents, Bradford George Perry

Electronic Theses and Dissertations

A study of Big Stone Lake area residents was accomplished to aid in determining the following: (1) The existing attitudinal orientations of area residents relative to an incoming electrical generating facility (the Big Stone Power Plant); (2) The degree of association between selected variables and respondents' environmental attitudes; (3) The capability of the areas existing institutions to accommodate the local population, and possible effects of plant construction and operation; (4) The potential reference groups utilized for behavioral orientation. The unit of analysis consisted of Big Stone Lake area residents within a three county universe of discourse. Primary emphasis in sampling …

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Recognizability And Reproducibility Of Airphoto Interpreted Landscape Units, Robert Dean Heil Jan 1972

Recognizability And Reproducibility Of Airphoto Interpreted Landscape Units, Robert Dean Heil

Electronic Theses and Dissertations

A physiographic terrain analysis study using the principles of airphoto interpretation was made: (1) to determine the internal homogeneity of airphoto interpreted mapping units, (2) to determine the variability in characteristics among different occurrences of the same mapping unit, and (3) to determine if the units differentiated were sufficiently different to warrant discrimination. The study was conducted in Sedgewick County, Colorado. The study area was comprised of four distinctly different land forms [sic]: a major river and its associated floodplain and terraces; a level to nearly level loamy upland plain; a level to sloping sandy upland plain; and steeply sloping, …

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Carboxymethylcellulose As A Carrier For Follicle Stimulating Hormone In The Female Rat And Bovine, C. Leroy Johnson Jan 1972

Carboxymethylcellulose As A Carrier For Follicle Stimulating Hormone In The Female Rat And Bovine, C. Leroy Johnson

Electronic Theses and Dissertations

A series of biological assays were conducted to compare physiological saline (PSS) and carboxymethylcellulose (CMC) as carriers for follicle stimulating hormone (FSH) and to determine the optimum ratio of FSH to CMC. Constant individual dosages of 0.5 mg FSH were injected into a total of 384 immature female rats in four experiments. Treatments included single injections of FSH in PSS, FSH in 1 percent CMC at ratios (mg FSH: ml CMC) OF 1:3, 1:2, 1:1, 2:1, 3:1, 5:1 and FSH in 2 percent CMC at a ratio of 1:1. Parameters of primary and secondary response were ovarian and uterine weight, …

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Evidence For The Presence Of Two Nucleases In Barley Tissue And The Influence Of Genotype On Their Properties, Clay G. Johnson Jan 1972

Evidence For The Presence Of Two Nucleases In Barley Tissue And The Influence Of Genotype On Their Properties, Clay G. Johnson

Electronic Theses and Dissertations

Several lines of evidence have shown that genetic variability exists within the barley species (Hordeum vulgare L.) with respect to the kinetics and specificity of yeast ribonucleic acid degradation. Initial efforts demonstrated that ribonuclease (RNase), in the crude soluble protein fraction from the cultivar Dicktoo, was inhibited by KC1 and phosphate. RNase activity was enhanced if heated to 60 C for short periods. In contrast, RNase in the crude soluble protein of the cultivar Tennessee Winter showed no altered response by either KC1 or phosphate. Maximal RNase activity was at pH 5.0 for extracts of both cultivars (0.16 M KC1), …

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Estimation Of N Availability And No3-N Movement In Soils, Raymond Charles Ward Jan 1972

Estimation Of N Availability And No3-N Movement In Soils, Raymond Charles Ward

Electronic Theses and Dissertations

Objectives of this study were: (a) to evaluate several N soil tests that are used to estimate soil N availability, and (b) to measure the distribution of inorganic N in the soil profile after an application of fertilizer N. Small grain yield response from an application of 17, 34, or 67 kg N/ha was used as the parameter of N availability. These parameters were related to 23 independent variables by use of a step wise multiple regression program. Nitrogen soil tests and climatic factors (rainfall and temperature) were the independent variables involved in the analysis. Nitrogen soil tests included were …

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The Effect Of Allopurinol (4-Hydroxypyrazolo(3,4-D) Pyrimidine) On Uric Acrid Metabolism In Differential Grasshoppers (Melanoplus Differentialis) And Armyworms (Pseudoletia Unipuncta), Henry C. Schroeder, Jr. Jan 1972

The Effect Of Allopurinol (4-Hydroxypyrazolo(3,4-D) Pyrimidine) On Uric Acrid Metabolism In Differential Grasshoppers (Melanoplus Differentialis) And Armyworms (Pseudoletia Unipuncta), Henry C. Schroeder, Jr.

Electronic Theses and Dissertations

Allopurinol, a potent inhibitor of xanthine oxidase in humans, was incorporated in the diets of differential grasshopper nymphs and adults and armyworm larvae. Uric acid contents of whole body homogenates decreased by highly significant rates. Feces uric acid decreased by highly significant rates in grasshopper nymphs and adults. Allopurinol also caused highly significant increases in mortality and inhibition of metamorphosis in study insects. These effects were not reversible by the addition of purine and pyrimidine bases, inosine, oxypurines, or uric acid. The effects were reversed by discontinuing application of allopurinol. Crude xanthine oxidase, assayed by measuring the reduction of NAD …

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Urban Insurrections: A Multi-Disciplinary Approach Toward An Integrated Typology, James Russell Stewart Jan 1972

Urban Insurrections: A Multi-Disciplinary Approach Toward An Integrated Typology, James Russell Stewart

Electronic Theses and Dissertations

The purpose of this study is to investigate the possibility and appropriateness of employing a multi-disciplinary approach in the study of urban insurrections in an effort to construct a typology which would include all of the elements common to each disorder. The multi-disciplinary method is necessitated by the biases which are inherent in any analysis that is restricted to either a psychological, sociological, or politico-historical treatment of episodes of collective behavior. All of the disciplines make major contributions to any analysis, but it is the contention of this writer that the disciplines must be integrated before the most accurate depiction …

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Effects Of Manganese Chloride On Gravid Gilts And Newborn Pigs, Dale A. Wade Jan 1972

Effects Of Manganese Chloride On Gravid Gilts And Newborn Pigs, Dale A. Wade

Electronic Theses and Dissertations

Excessive dietary manganese in young mammals has depressed hemoglobin levels, red blood cell synthesis and growth in some investigations, while in other research these were increased. Toxic levels, mode of action and specific physiological effects are unknown although manganese, cobalt and iron appear to compete for absorption mechanisms. Manganese functions in enzyme systems and in carbohydrate and lipid metabolism, is present in red cells and plasma and may be incorporated into the hemoglobin molecule. Gravid gilts were utilized in these investigations since piglet anemia is an economic problem and manganese effects in swine have not been fully defined. Gilt rations …

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An Incrementally Distributed Mathematical Model Of A Watershed, Charles Arnold Onstad Jan 1972

An Incrementally Distributed Mathematical Model Of A Watershed, Charles Arnold Onstad

Electronic Theses and Dissertations

The utilization of distributed input parameters enables hydrologists to more adequately cope with watershed management problems. A distributed system aids in evaluating alternative solutions designed to alleviate a problem situation. As a result, the objectives of this study were (1) to develop a hydrological framework delineating the surf ace configuration of a watershed to consider parameter distribution; (2) to develop a model of hydrologic performance of a watershed using existing techniques and amenable to the physical framework; and (3) to demonstrate the versatility of the model using hypothetical data. The model versatility was demonstrated by showing the effects of different …

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Amino Acid Supplementation Of Low Protein Layer Diets, Harlal Choudhury Jan 1972

Amino Acid Supplementation Of Low Protein Layer Diets, Harlal Choudhury

Electronic Theses and Dissertations

Experiments were conducted at the South Dakota State University Poultry Research Center to study the effects of amino acid supplementation of low protein diets on performance of laying type hens. Hans, housed in 8-inch cages, were fed at 24 weeks of age typical 16% protein corn-soy diets diluted with glucose to 10.8% protein and supplemented with 0.15% DL-methionine, 0.19% L-lysine and 0.04% DL-tryptophan. After about 20 weeks of depletion, supplements of 0.05 and 0.1% DL-threonine and DL-valine and 0.1% DL-isoleucine alone and in all combinations were fed for a further period of 16 weeks using a factorial design. Individual supplements …

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An Electronic Ordering System For Table Service Restaurants, Thomas A. Roman Jan 1972

An Electronic Ordering System For Table Service Restaurants, Thomas A. Roman

Electronic Theses and Dissertations

As the title of this paper suggests, we have designed an ordering system for table service restaurants. The "ordering system" is the process of communication from customer-to-waitress-to-cook. In this first chapter, some of the problems which occur in table service restaurants will be briefly discussed and described to give the reader an idea of what this ordering system will attempt to solve. The specific problems and the proposed solution will be pointed out. The reader is probably asking, "Just what is a table service restaurant?'' A service restaurant is a restaurant where there is some type of service provided--by waitresses, …

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An Investigation Of A Hydrostatic Transmission, James Joseph Rother Jan 1972

An Investigation Of A Hydrostatic Transmission, James Joseph Rother

Electronic Theses and Dissertations

In recent years there has been a tremendous change taking place in the area of power transmission. The use of a hydrostatic transmission in place of the conventional gear-type transmission in power driven machines has increased substantially. The introduction by International Harvester Co. of a hydrostatic transmission into their fa.rm tractors has increased interest in this relatively new form of power transmission. The hydrostatic transmission was a logical next step over the increasing number of speeds offered in today’s farm tractor. A hydrostatic transmission allows the operator a choice of infinite speeds. This feature is especially important where the tractor …

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Bionomics Of A Greenbug Parasite Lysiphlebus Testaceipes (Cresson), Barrington M. J. Tyler Jan 1972

Bionomics Of A Greenbug Parasite Lysiphlebus Testaceipes (Cresson), Barrington M. J. Tyler

Electronic Theses and Dissertations

The greenbug, Schizaphis graminum (Rondani), is a major pest to grain crops in the Great Plains states. In 1968, 7.3 X 106 acres of sorghum were infested in nine of these states. The loss of sorghum in Kansas alone was estimated at lJ.5 X 106 bushels. In 1969 and 1970 the combined South Dakota recorded sorghum yield and control losses were over $2.6 X io6 (USDA 1970 and 1971). The greenbug is an economic vector for diseases of winter wheat, barley, oats, sorghum, and cane. Severe infestations on winter wheat have led to reduced crop cover and soil erosion. S. …

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A Cytogenetical Study Of A Hexaploid Agrotricum Immune From Wheat Streak Mosaic Virus, Raymond Sze-Chung Wong Jan 1972

A Cytogenetical Study Of A Hexaploid Agrotricum Immune From Wheat Streak Mosaic Virus, Raymond Sze-Chung Wong

Electronic Theses and Dissertations

No abstract provided.

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A Study Of The In Vitro Drug Availability Of Various Brands Of Prednisolone Tablets, Robert E. Northern Jan 1972

A Study Of The In Vitro Drug Availability Of Various Brands Of Prednisolone Tablets, Robert E. Northern

Electronic Theses and Dissertations

No abstract provided.

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The Theme Of Self-Discovery In Gone With The Wind, Patricia Robertson Mazzanti Jan 1972

The Theme Of Self-Discovery In Gone With The Wind, Patricia Robertson Mazzanti

Electronic Theses and Dissertations

No abstract provided.

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On The Problem Of An Infinite Number Of Non-Coplanar Parallel Cracks In A Strip With Constrained Edges, Dana F. Peterson Jan 1972

On The Problem Of An Infinite Number Of Non-Coplanar Parallel Cracks In A Strip With Constrained Edges, Dana F. Peterson

Electronic Theses and Dissertations

No abstract provided.

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The Poisson Distribution And Some Of Its Applications, Marshall Glenn Duckworth Jan 1972

The Poisson Distribution And Some Of Its Applications, Marshall Glenn Duckworth

Electronic Theses and Dissertations

No abstract provided.

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A Comparison Of Form And Rhythm In Selected Flute Sonatas By J. S. Bach And G. F. Handel / By Aurelia Winifred Whitener Urbanek, Aurelia Winifred Whitener Urbanek Jan 1972

A Comparison Of Form And Rhythm In Selected Flute Sonatas By J. S. Bach And G. F. Handel / By Aurelia Winifred Whitener Urbanek, Aurelia Winifred Whitener Urbanek

Electronic Theses and Dissertations

No abstract provided.

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Effects Of Polychlorinated Biphhenyls In The Ring-Necked Pheasant, Robert Bernard Dahlgren Jan 1972

Effects Of Polychlorinated Biphhenyls In The Ring-Necked Pheasant, Robert Bernard Dahlgren

Electronic Theses and Dissertations

In 1970 and 1971, cock pheasants (Phasianus colchicus) were given single capsules weekly containing 0 and 25 mg polychlorinated biphenyls (PCB), Aroclor 1254, and hens were given O, 12.5, and 50 mg. Egg production was reduced (P<0.01) in the hens given 50 mg PCB both years. Fertility, determined by visual inspection of incubated eggs, was unaffected by PCB. Hatchability was lowest in the group of hens given 50 mg in both years but significantly lower (P<0.01) only in 1971. PCB adversely affected the viability of the embryo both years, as the number of eggs pipped but not hatched in PCB groups was higher (P<0.05). PCB did not affect eggshell thickness. Behavior on the visual cliff shortly after hatching was affected among offspring of hens given 50 mg PCB in 1970 (P,0.01). Offspring of hens given 50 mg chose the visually-deep side of the cliff. No differences in behavior on the visual cliff were evident in 1971. Response to hand catching of offspring was affected in 1970 (P <0.01). The ability of penned pheasants to avoid hand capture was least where both parents received PCB, followed by those where hens only, cocks only and neither parent received PCB. No differences in response to hand capture among groups were found in 1971. Weights of chicks from hens on 50 mg were lower (P<0.01) at 6 weeks of age in 1970. This effect was not seen in 1971. Survival of chicks in brooders to 6 weeks of age was lower (P<0.01) in offspring of hens given 50 mg PCB weekly in 1970. No differences were found among offspring of treatment groups in 1971. Survival from 6 weeks of age to fall was similar in all groups. Overall survival from hatching to fall was less (P<.0.05) in offspring of hens given 50 mg weekly in both years combined. No differential effect was found between sexes for survival. PCB in doses varying front 10 mg to 210 mg daily caused hyper-excitability, weakness, tremoring, lack of appetite, lack of feathers, and a comatose death. Birds 11-weeks old given 10 or 20 mg PCB daily, birds 6 to 9 months old given 50 or 100 mg each 3.5 days, and adult hens given up to 50 mg once a week continued to eat. Eleven-week old birds given 210 mg daily stopped eating or those given 210 mg daily, the heaviest birds lost the greatest percentage of their weight (15 to 31 percent) before death occurred (1.3 to 4.3 days). Birds intentionally starved at the same time lost a greater percentage of weight (27 to 51 percent) before death (2.3 to 8.6 days). Some adult hens were given a single 50-mg capsule and samples of whole body, brain, liver, muscle, eggs, and feces were analyzed to determine patterns of storage and excretion. Levels of PCB were highest at 12 hours after capsule administration. Residues were highest in liver, followed by brain and muscle over 28 days following the single 50-mg capsule. From 94 to 98 percent of the administered dose was absorbed and 40.5 mg of the 50mg were in the body after 28 days. Hens were in a state of low egg production and excreted 4.2 mg in the eggs and 4.0 mg in the feces over 28 days. Excretion in the egg could be an important means of ridding the body of PCB. Four hens from the 1970 breeding experiment, given 17 capsules weekly containing 12.5 mg PCB and killed 1 week following the last capsule, had from 37 to 56 percent of the administered dose in their bodies. Four hens on the 50-mg level in 1970 had from 60 to 82 percent of the dose given. Five hens given 12.5 mg weekly for 16 weeks in 1971 had an average of 23.8 ppm PCB in their bodies 1 week after the last capsule, three hens had an average of 13.6 ppm after 3months on a clean diet, and three others had an average of 20.9 ppm after 6 months. Excretion was variable and slow. An analysis of brain, liver, and muscle tissues from dead and surviving birds fed PCB at various levels showed that brain residue levels from 300 to 400 ppm wet weight were indicative of death from FCB toxicosis. Liver and muscle levels were too variable to be useful in assessing cause of death. Administration of PCB decreased weights of heart and spleen (P <0. 01) at all levels given and increased weights of kidneys and livers in birds given 10- and 20-rng doses daily (P <0. 01) but not in birds given 210 mg daily. Splenic atrophy, where spleens were small, pale-tan color, and had wrinkled capsules resulting from depletion of lymphatic nodules, was characteristic of birds given PCB. PCB and dieldrin were given singly and jointly, and only additive, not synergistic, effects were noted. Livers of wild pheasants from Pennsylvania, Indiana, and South Dakota had no more than 2 ppm PCB. This indicates low-level contamination.

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A Study Of Monolithic Circuit Components, Mahendra Pratap Agrawal Jan 1972

A Study Of Monolithic Circuit Components, Mahendra Pratap Agrawal

Electronic Theses and Dissertations

This research is concerned with the study of some monolithic circuit components--resistors and the p-n junctions of diodes and transistors. Because of the parasitic effects, these studies are original and valuable. The thesis is arranged in three sections. The first section is devoted to the parasitic effects in diffused resistors. The objective of the research was to find a suitable theoretical model for resistors which will predict input impedance magnitude and phase responses based on experimental observations. Some of the literature available on the parasitic effects in diffused resistors discusses the impedance magnitude response. Phase studies showing the nature of …

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Studies On Reaction Of Mimosine With Various Amines And Effects Of Mimosine On Tyrosine Decarboxylation, Paul D. Ballata Jan 1972

Studies On Reaction Of Mimosine With Various Amines And Effects Of Mimosine On Tyrosine Decarboxylation, Paul D. Ballata

Electronic Theses and Dissertations

As early as 1897 the toxic effects of mimosine were observed and animals ingesting mimosine showed symptoms of hair loss, infertility, and retardation of growth. Mimosine occurs naturally in leguminous plants indigenous throughout the tropics of the world. Since the forage of these plants has a protein content as high as alfalfa and is relished by all kinds of livestock, the mechanism of the toxicity of mimosine should be explained. Although the effects of mimosine have been known for a long time, the reason or mechanism for these effects has not been explained. Much work has been done on the …

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Cooling Load Calculations Of Heat Gain For Buildings, Hai- Chow Chen Jan 1972

Cooling Load Calculations Of Heat Gain For Buildings, Hai- Chow Chen

Electronic Theses and Dissertations

Two recent papers [1,2] obtain formulas for temperature variations caused by the varying flow of solar heat through windows. These two works are used in the present study to develop a computer program for calculating the transient cooling load required to maintain the interior of a building at a given temperature. We assume that the building is standing by itself without surrounding radiating buildings or pavements. The heat gain through semi-transparent single or composite barriers is combined with the accompanying heat gain through the opaque walls; see Figure 1. The analytical solutions given in [1,2] cannot be represented directly as …

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Biologies Of Altica Subplicata (Leconte) And Disonycha Alternata (Illiger) (Coleoptera: Chrysomelidae) Found On Salix Interior Rowlee, David H. Deswarte Jan 1972

Biologies Of Altica Subplicata (Leconte) And Disonycha Alternata (Illiger) (Coleoptera: Chrysomelidae) Found On Salix Interior Rowlee, David H. Deswarte

Electronic Theses and Dissertations

Disoqycha alternata (Illiger) and Altica subplicata (LeConte) are two flea-beetles characteristically found feeding on Salix spp. The only studies done to date on these two genera are taxonomic, either local faunistic or descriptive works. Both Disonycha and Altica have been taxonomically studied for limited zoogeographic areas, but many of these works are old, incomplete, and in need of revision. No previous work has been done on the biologies of either of these two species. This paper includes morphological descriptions of the larvae of D. alternata and A. subplicata and outlines their life histories. A few notes on behavior have also …

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The Horse As Symbol In D.H. Lawrence's St. Mawr, Dolores Elizabeth Horwood Jan 1972

The Horse As Symbol In D.H. Lawrence's St. Mawr, Dolores Elizabeth Horwood

Electronic Theses and Dissertations

What is most important about a novel like St. Mawr? The horse-symbol which dominates both the novel and this thesis? The "doctrine of spontaneity" which Lawrence espoused and wrote about on almost every page of the short novel? Or simply the fact that Lawrence's language is as spontaneous and powerful as the natural world of which he wrote? All of these are St. Mawr, and all are, to some degree, reflected in this thesis. Also reflected in this thesis is my admiration both for the works of Lawrence and for the man himself--and they are really one in the same.

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A College Characteristics Instrument Measure Of Absolute Change Between Freshman Expectations And Perceptions Of A College Environment As Related To Grade Point Average And Sex Of The Student, Zdzislaw Piotrowski Jan 1972

A College Characteristics Instrument Measure Of Absolute Change Between Freshman Expectations And Perceptions Of A College Environment As Related To Grade Point Average And Sex Of The Student, Zdzislaw Piotrowski

Electronic Theses and Dissertations

The general thesis underlying this study is that a student's absolute change between expectations and perceptions of a college environment is related to his performance and sex. Two null hypotheses were generated. The hypotheses as related to the methodology and the CCI instrument of the study were: 1. There are no significant differences in the freshman change or C-score on the basis of sex of the student. 2. There are no significant differences in the freshman change or C-score on the basis of grade point average grouping. The population was divided into three groups with male and female subdivided within …

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Temperature Effects On Integral Abutment Bridges During Early Construction Stages, Mumtaz Bashir Sarsam Jan 1972

Temperature Effects On Integral Abutment Bridges During Early Construction Stages, Mumtaz Bashir Sarsam

Electronic Theses and Dissertations

The main objective of this research was to study and evaluate the effects of thermal movements on integral abutment bridges during early construction stages. Particular emphasis was placed on the evaluation of the resultant state of stress of the upper portion of the steel piling and portions of the girders immediately adjoining the integral abutment. A full-scale model representing the end portion of a typical highway bridge was constructed and tested in two stages: a) After the girders were erected and welded to the bearing piles, but before the integral abutment concrete was poured. b) After the integral abutment was …

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Tolerance Studies To Wheat Streak Mosaic Virus In Winter And Spring Wheats, Fazal Rahman Jan 1972

Tolerance Studies To Wheat Streak Mosaic Virus In Winter And Spring Wheats, Fazal Rahman

Electronic Theses and Dissertations

Thirty-five winter and fourteen spring wheat varieties were evaluated for their reaction to wheat streak mosaic virus during 1969-1970 and 1970-1971. Plants were mechanically inoculated and the effects of virus were measured, relative to the control plots, in regards to seed yield, protein percentage, plant height, test weight, 1000-seed weight, number of tillers per plant, number of heads per tiller, number of seeds per head, and number of plants in the 2-foot subplot. Varieties were compared visually for their susceptibility to the virus in terms of percentage infection and severity of symptoms. Seed yield, plant height, test weight, 1000-seed weight, …

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