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Recreational Use Of Six Prairie Wetlands In Eastern South Dakota, Timothy Allen Thompson
Recreational Use Of Six Prairie Wetlands In Eastern South Dakota, Timothy Allen Thompson
Electronic Theses and Dissertations
A recreational use survey was conducted at 6 public wetlands in eastern South Dakota from August 9, 1981 through August 8, 1982. Four hundred and fifty-eight postcard questionnaires were placed on vehicles encountered at these marshes during random time periods. Two hundred and thirty-five were voluntarily returned for a response rate of 51.3%. Approximately 10, 020 people made 4,778 trips to these wetlands and spent 63, 093 man-hours. Thirty-one different activities were observed or reported. Hunting accounted for 96.0% of all fall trips and 89.1% of yearly visits. Over 89% of all visits occurred during fall and over 50% of …
Characteristics And Success Of South Dakota Archery Deer Hunters, Kelly Brian Mcphillips
Characteristics And Success Of South Dakota Archery Deer Hunters, Kelly Brian Mcphillips
Electronic Theses and Dissertations
Two mail questionnaires were sent to South Dakota archery deer hunters after the 1981 archery deer season. One questionnaire was sent to a random sample of all bowhunters, and the second was sent to a sample of bowhunters failing to return the South Dakota Department of Game, Fish, and Parks (SDGFP) mandatory big game hunter report card. Success rate of bowhunters killing deer and crippling rate of deer by bowhunters were determined. A profile of the average bowhunter was developed. The SDGFP bowhunter reporting system was evaluated. Success rates from the 2 questionnaires (29% and 19%) were significantly different from …
Selected Factors Associated With Age-Specific Net Migration For South Dakota, 1970-1980, Sidney G. Goss
Selected Factors Associated With Age-Specific Net Migration For South Dakota, 1970-1980, Sidney G. Goss
Electronic Theses and Dissertations
A study of South Dakota net migration was conducted to (1) determine the extent of age-specific migration from 1970-80; (2) compare current age-specific migration patterns with the previous decade; and (3) determine selected socio-demographic factors associated with the 1970-80 migration for the 20-29 age group. The unit of analysis was county. Multiple regression was used, and Lee’s model provided the theoretical framework. Analysis of Objective One revealed that: from 1970 to 1980, (1) South Dakota experienced total ne out-migration of 26,384 persons; (2) twelve five-year age categories experienced net out-migration; (3) the 20-29 age group accounted for 73 percent of …
Lactational And Chemical Evaluation Of Soybean Meals Heat-Treated By Two Methods, Tilahun Sahlu
Lactational And Chemical Evaluation Of Soybean Meals Heat-Treated By Two Methods, Tilahun Sahlu
Electronic Theses and Dissertations
A series of experiments were conducted to evaluate regular, commercially available solvent extracted soybean mean (SBM), and SBM subjected to additional heat either during desolventizing (HSBM), or by extrusion (ESBM). Soluble nitrogen (14.8, 9.3, and 7.0% of crude protein for SBM, HSBM, and ESBM) and degradable protein (71.0, 68.7, and 58.7% of crude protein) were reduced by heat-treating soybean meal. Nonessential amino acids in soybean meals were more soluble and degradable than essential amino acids. The first five limiting amino acids (methionine, lysine, valine, leucine, and isoleucine) for milk production were the same, although relative order was altered by heat …
The Phosphacylium Ion: Evidence For Its Existence As An Intermediate In Reactions Of Organophosphates, Thomas D. Matus
The Phosphacylium Ion: Evidence For Its Existence As An Intermediate In Reactions Of Organophosphates, Thomas D. Matus
Electronic Theses and Dissertations
Prior to this work, no strong evidence existed which unequivocably proved the existence of phosphacylium ions as intermediates in reactions of this type. It is the object of this study to look into nucleophilic substitution at phosphorus, and the intermediates of these possible dissociative type reactions.
The Effect Of Varying Dietary Selenium Levels, Selenium Source And Dietary Composition On Growing Swine, Terry B. Goehring
The Effect Of Varying Dietary Selenium Levels, Selenium Source And Dietary Composition On Growing Swine, Terry B. Goehring
Electronic Theses and Dissertations
During the early 1900's, many stockmen in the western Great Plains suffered huge economic losses due to poisoning of their livestock through consumption of seleniferous plant material. Some were forced to discontinue raising livestock entirely and turned to grain farming. However, grain produced on land high in selenium was discounted on the market. Today, this grain marketing problem does not exist to the extent of that of the early 1900's. Selenium has more recently been recognized as an essential micronutrient for several species including swine. The Food and Drug Administration (FDA) has approved sodium selenite and sodium selenate as supplements …
Effects Of Seed Weight On Seedling Establishment, Forage Yield, And Seed Production Characteristics Of Switchgrass (Panicum Virgatum L.), Paul O. Johnson
Effects Of Seed Weight On Seedling Establishment, Forage Yield, And Seed Production Characteristics Of Switchgrass (Panicum Virgatum L.), Paul O. Johnson
Electronic Theses and Dissertations
Switchgrass (Panicum virgatum L.), a warm-season grass native to North America, is distributed from Canada to Central America anu from the Atlantic Coast to Nevada over a wide range of habitats. It exhibits tremendous promise for forage and soil conservation utilization in the Great Plains and True Prairie regions. The economic value of switchgrass as summer forage has long been recognized and its potential for improved variety production is great due to extensive ecotypic genetic variability and relatively good seed quality and production. A full season pasture system comprised of separate pastures of cool and warm-season species offers maximum beef …
Parasites Of Three Species Of South Dakota Lagomorphs, Glenn E. Kietzmann
Parasites Of Three Species Of South Dakota Lagomorphs, Glenn E. Kietzmann
Electronic Theses and Dissertations
The wild lagomorpha of North America have in the past been the subject of numerous parasitological examinations. Many of these surveys have been performed on cottontail rabbits, while comparatively fewer studies have been done on the jack rabbits. In South Dakota, parasite surveys have yet to be. completed on both cottontail rabbits and jack rabbits. The representatives of the Leporidae found in South Dakota are the white-tailed jack rabbit (Lepus townsendii campanius), the black tailed jack rabbit (Lepus californicus melanotis), the eastern cottontail rabbits Sylvilagus floridanus similis and Sylvilagus floridanus mearnsii), the desert cottontail rabbit (Sylvilagus audubonii baileyi) and the …
Design And Evaluation Of A Solar Water Heating Package For A Solar Energy Intensifier-Thermal Energy Storage System, Charles Remund
Design And Evaluation Of A Solar Water Heating Package For A Solar Energy Intensifier-Thermal Energy Storage System, Charles Remund
Electronic Theses and Dissertations
Sources of farm energy, which include oil, natural gas and electricity, have more than doubled in cost over the past decade. This increasing cost of non-renewable energy plus the uncertainty of its availability initiated research efforts for alternate energy sources. has been solar energy. One of these sources Farms with ample area for collectors, fuel reserves for backup or peak demands and a wide range of low to intermediate heat requirements provide excellent conditions for utilization of solar energy. However, the use of solar energy as an alternate energy source for agricultural applications has been restricted, largely by system costs. …
Demographic Correlations With Exercise Of Self-Care Agency In Women, Susan Marie Hubka Todd
Demographic Correlations With Exercise Of Self-Care Agency In Women, Susan Marie Hubka Todd
Electronic Theses and Dissertations
The particular health needs of women have not been addressed by health care professionals. There are three reasons for this: first, only the reproductive functions of women are thought to be particularly female health problems, thus producing a severely limited scope of study on women; secondly, all other health problems are measured in terms of normal adult functioning, those norms having been set by research on adult male normalcy or pathology; and lastly, what studies have been individualized to women have been done on women only in illness situations. Dunbar et al illustrated in their comprehensive, nursing literature search the …
Suitability Of Selected Organisms For Monitoring Leachate At A Refuse Disposal Site, John Nathan True
Suitability Of Selected Organisms For Monitoring Leachate At A Refuse Disposal Site, John Nathan True
Electronic Theses and Dissertations
If a landfill is improperly managed or improperly located, contamination of the ground water is possible. Once contaminated, the polluted ground water can travel for great distances with little dispersal or interaction with the soil. Once the ground water is polluted it is very costly, if even possible, to alleviate the problem. Over fifty percent of the people in the United States use ground water as a source for drinking water. With landfills located throughout the U.S. and with over one half of the population drinking ground water, it is not hard to visualize the pollution potential from an improperly …
Ultrafiltration Of Skim Milk Prior To Cottage Cheese Making, Izhar H. Athar
Ultrafiltration Of Skim Milk Prior To Cottage Cheese Making, Izhar H. Athar
Electronic Theses and Dissertations
Cottage cheese has the largest sales volume potential of all cultured dairy products in the United States today. Moreover, it can be a highly profitable product if proper control is exercised during its manufacturing (46). Commercial production of cottage cheese utilizes a significant portion of the total fluid milk produced in the U. S.A. After the 1955's, yearly per capita consumption of cottage cheese increased from 1. 7 7 kg (3.9 lb) to a high of 2. 45 kg (5.4 lb) in 1972 (67) . Consumer demand for lower fat dairy products gradually increased, which put more pricing emphasis on …
Soil Detection Using Panchromatic And Infrared Films, Bruce O. Kunze
Soil Detection Using Panchromatic And Infrared Films, Bruce O. Kunze
Electronic Theses and Dissertations
Efforts have been made in the soil survey program to improve soil mapping quality. Three types of aerial films were tested to determine if tonal differences exist among the three film types either singularly or in combination which would allow discrimination of soil series within a landscape across several land covers. The imagery consisted of panchromatic (600-700 nm), panchromatic (SOQ-700 nm), and black and white infrared (70Q-900 nm). The utility of these film types for discrimination of the components of soil mapping unit complexes was also tested. Differences were detected between films in the accuracy of discriminating soils due to …
Attitudes Of South Dakota Home Economics Teachers Toward The Use Of Microcomputers, Mary J. Pickard
Attitudes Of South Dakota Home Economics Teachers Toward The Use Of Microcomputers, Mary J. Pickard
Electronic Theses and Dissertations
The project was designed to assess attitudes of South Dakota secondary home economics teachers toward computers. Attitude was assessed using an instrument developed by David Ahl for measuring public feeling toward computers. Hypotheses relating attitude to educational background, size of school, years of teaching experience, and exposure to and availability of computers were tested. A secondary purpose was to determine teacher preference for learning how to use computers. A random sample of home economics teachers in 108 schools received the survey instrument. The sample was stratified according to school size. The majority of schools, 90 percent, had computers. However, only …
A Case Study In Establishing An In-House Polling Operation For A South Dakota Political Campaign, Jeff Brockelsby
A Case Study In Establishing An In-House Polling Operation For A South Dakota Political Campaign, Jeff Brockelsby
Electronic Theses and Dissertations
Evaluating what voters are thinking and deciding how best to communicate with them are critical to a political candidate planning a campaign strategy. Until recently, a candidate relied on his own instincts and those of his advisers to evaluate what people thought about a particular issue or person and to determine the most effective way of presenting campaign messages. Political polling has changed this. Political scientist Paul Van Riper said in Handbook of Practical Politics "the rapidly increasing utilization of social science techniques to help determine political strategy is one of the most important of the recent trends in American …
The Effect Of Various Levels Of Dietary Sunflower Seeds On Performance And Carcass Characteristics Of Growing-Finishing Pigs, Alan D. Hartman
The Effect Of Various Levels Of Dietary Sunflower Seeds On Performance And Carcass Characteristics Of Growing-Finishing Pigs, Alan D. Hartman
Electronic Theses and Dissertations
Sunflower seeds have become an important crop in several midwestern states. In the past, sunflower seeds have been used primarily in the production of sunflower oil and sunflower meal, with some seeds being used in the production of confectionery seeds. Not all sunflower seeds are suitable for these uses. An alternate use of these seeds would be incorporating them into livestock diets. Sunflower seeds may contain 40% or more oil that is highly unsaturated in nature. In swine diets the addition of a fat source such as sunflower seeds would be primarily at the expense of a carbohydrate source in …
The Chinese Radio And Television Stations In The United States : A Historical Exploration, Lin Liang
The Chinese Radio And Television Stations In The United States : A Historical Exploration, Lin Liang
Electronic Theses and Dissertations
Historically, Chinese immigration to the United States began in around 1850, even though immigration statistics in the United States showed that forty Chinese had arrived before the news reached Hong Kong that gold had been discovered in California in the spring of 1848. As the gold rush tapered off in the early 1860s, the Chinese soon filled in as general laborers, domestic servants, cooks, and gardeners. However, they found opposition from the white laborers in the mining camps as early as 1852, and they were denied eligibility for citizenship. The need to be aided and protected was great. All of …
Environmental Factors Influencing The Degradation Of Carbofuran, Douglas E. Raynie
Environmental Factors Influencing The Degradation Of Carbofuran, Douglas E. Raynie
Electronic Theses and Dissertations
As society places a greater emphasis on agricultural production, knowledge of the wise use of farm chemicals becomes increasingly important. Armed with reduced tillage, crop rotation options, remotely sensed data, and other developing technologies, the agriculturalist must have the capacity to properly apply supportive chemicals. Among these chemicals are the pesticides. Thorough knowledge of the breakdown, particularly biologically based degradation, of effective pesticides is lacking in many cases. Carbofuran is a common broad spectrum carbamate insecticide. Because of its wide use there has been a considerable amount of study on the chemical, microbial, and physical factors affecting degradation. Due to …
Rumen Microbial Protein Synthesis In Cows Fed Dried Whey, Paul M. Windschitl
Rumen Microbial Protein Synthesis In Cows Fed Dried Whey, Paul M. Windschitl
Electronic Theses and Dissertations
Two rumen fistulated Holstein cows, weighing approximately 550 kg, were used in a switchback design experiment to evaluate the effects of consuming large amounts (38% of total ration dry matter) of dried whey on rumen microbial protein synthesis. Cows were fed total mixed rations consisting of (dry matter basis) 45% corn silage, 10% alfalfa hay, and 45% concentrate mix. The concentrate mix was primarily corn and soybean meal (control) or 85% dried whole whey. Dry matter intakes averaged 16.4 and 15.3 kg/day for control and whey diets. Concentrations of bacteria and protozoa in rumen contents were estimated using diaminopimelic acid …
Field Evaluation Of A Solar Energy Intensifier-Thermal Energy Storage System, Kurt D. Bassett
Field Evaluation Of A Solar Energy Intensifier-Thermal Energy Storage System, Kurt D. Bassett
Electronic Theses and Dissertations
Solar energy has been recognized as a potential source of energy for low-temperature agricultural applications. Many processes, such as space heating, drying of farm products or waste materials, and water heating require low-temperature heat which can be supplied by solar radiation. Hellickson, et. al. circumstances attractive to which make solar energy the agricultural industry circumstances were: 1. Adequate land area, 2. Numerous processes requiring low temperature rise, 3. Compatibility between low temperature rise and high solar system efficiency, resulting in lower cost, and 4. Availability of the necessary air moving equipment as part of existing crop drying and livestock ventilation …
Numbers And Activity Of Nitrogen-Fixing Bacteria Associated With Spring Wheat, Mark W. Dott
Numbers And Activity Of Nitrogen-Fixing Bacteria Associated With Spring Wheat, Mark W. Dott
Electronic Theses and Dissertations
Much of the food production in the world today depends on the presence of an adequate supply of nitrogen in the soil. Whether farming methods are simple or intense, nitrogen in usually the primary limiting factor in this production. In order to relieve this limitation, much of the world's agriculture has turned to the commercial manufacture and application of nitrogen fertilizers to increase crop output and to bring new lands into production. The manufacture of nitrogen fertilizer is an energy intensive process requiring large amounts of petroleum. The increasing price of fossil fuels is then passed on in the form …
Tissue Culture Of The Forage Grass Little Bluestem (Schizachyrium Scoparium (Michx) Nash), David D. Songstad
Tissue Culture Of The Forage Grass Little Bluestem (Schizachyrium Scoparium (Michx) Nash), David D. Songstad
Electronic Theses and Dissertations
Little bluestem, Schizachyrium scomarium (Michx) Nash, a warm-season perennial native grass, is widely distributed over the temperate portion of North America (Hitchcock, 1971), extending from Quebec to Alberta and Southward to Florida and Arizona. It is a major upland component of the tall and mixed grass prairies and furnishes substantial amounts of palatable forage throughout the summer. Little bluestem has also been used for soil conservation purposes and its reseeding characteristic makes it especially useful in range and conservation plantings. Although the plant can be propagated vegetatively by dividing crowns, due to its bunch-type growth, the conventional way of propagation …
Effects And Interactions Of Nitrogen And Soil Moisture Status Under A High Yield Irrigated Corn Environment, Dwayne L. Beck
Effects And Interactions Of Nitrogen And Soil Moisture Status Under A High Yield Irrigated Corn Environment, Dwayne L. Beck
Electronic Theses and Dissertations
A two-part study was conducted during the 1979 and 1980 growing seasons on irrigated lands adjoining the Missouri River in central South Dakota. Empirical [sic] models were developed to describe the response of irrigated corn (Zea mays L.) to soil water status and nitrogen fertilization at a location recently developed for sprinkler irrigation. Nitrogen fertilizer rates of 0, 100, 200, and 400 kg of N/ha were used under water treatments consisting of a 2.5 cm irrigation when soil water matric potential at a depth of 40 cm decreased to -35, -50, and -75 kPa. Yield differences due to soil water …
Market Structure And Conduct Of The South Dakota Beef Industry, Annette Lorraine Clauson
Market Structure And Conduct Of The South Dakota Beef Industry, Annette Lorraine Clauson
Electronic Theses and Dissertations
While the South Dakota livestock producer desires the best price for his product the day it is sold, he may not always receive it. Information about alternative marketing methods and prices being paid at alternative markets is not always available. If available, this information could lead to more efficient marketing. For example, just a one dollar annual increase in market price of livestock would increase the value of commercial slaughter in South Dakota by approximately $8 million/year. An increase like this would not only benefit the livestock producer; but could result in significant impacts on the economic well-being of the …
Neutron Activation Analysis For Trace Metal Content Of Brookings Sludge For Land Application, Daniel George Dewall
Neutron Activation Analysis For Trace Metal Content Of Brookings Sludge For Land Application, Daniel George Dewall
Electronic Theses and Dissertations
The Federal Environmental Protection Agency (EPA) strongly favors land application of sludge as a disposal method and requires communities to consider the application of sewage wastes to land as one of their alternatives to advanced wastewater treatment in order to be eligible for federal funding to improve sewage wastewater treatment facilities. Although use of sewage sludge on the land has definite benefits, several potential problems may develop when applying this method of disposal. One main concern has been the possibility of toxic metal pollution occurring in the application soils. If high concentrations of zinc, copper, lead, cadmium, etc. are present …
Perceptual Regions Of Minnesota, John L. Faundeen
Perceptual Regions Of Minnesota, John L. Faundeen
Electronic Theses and Dissertations
Economists, demographers, politicians, recreationalists, and others have divided the state of Minnesota into many different regions. In so doing, each claim to represent a meaningful division of state districts based upon their own particular viewpoint, need, or bias. Whether these regions are logically derived or merely delineated for purposes of convenience can, however, be questioned. Regardless of how the divisions carne about, they do, to a degree, represent an abstraction of space. Whether or not the average Minnesotan agrees with, or can even relate to, such abstractions is debatable. The way in which residents perceive the state and mentally delineate …
Replication Of Bovine Parainfluenza-3 Virus In Bovine Alveolar Macrophages : Effects On Phagocytosis And Phagosome-Lysosome Fusion, Richard Allen Hesse
Replication Of Bovine Parainfluenza-3 Virus In Bovine Alveolar Macrophages : Effects On Phagocytosis And Phagosome-Lysosome Fusion, Richard Allen Hesse
Electronic Theses and Dissertations
Bovine parainfluenza-3 virus was found to replicate in alveolar macrophages in vitro. Cytopathic changes include spindle cell and giant cell formation, cellular detachment, and diffuse cell lysis progressing to total destruction of the monolayer. Direct immunofluorescent microscopy demonstrated viral antigens in greater than 90% of the cells three days after virus inoculation. Virus titers in culture supernatants increased by 6 a factor of 1.6 X 10 TCID50 by six days post inoculation. Phagocytosis assays showed no statistical differences of glass adherent cells in virus infected and control macrophages. When the number of glass adherent cells available for assay are taken …
Determination Of Body Density Of College-Age Women Using Circumference Measurements, Melinda J. Robins
Determination Of Body Density Of College-Age Women Using Circumference Measurements, Melinda J. Robins
Electronic Theses and Dissertations
The purpose of this investigation was to determine an effective and simple method of estimating body density of college-age women (n=51), ages 18 to 26 years, using age and selected circumference measurements (thorax, waist, abdomen, hip, gluteal fold and thigh). Two subproblems were also investigated. The first subproblem was to determine if the sum of the selected circumferences was a better predictor of body density than when each circumference was used individually as a predictor. The second subproblem was to determine if body density could best be predicted by a linear or curvilinear relationship. Statistical analysis of the data included …
Soybean Root Growth And Water Uptake, V. Rasiah
Soybean Root Growth And Water Uptake, V. Rasiah
Electronic Theses and Dissertations
Rainfall is usually marginal for optimum crop production in the North Central Great Plains. As a result many farmers in this region are installing irrigation systems to supplement rainfall. The most common system installed is the center pivot. However, while this system has a low labor requirement it is costly. Economic reports from South Dakota State University indicate marginal to negative comparisons of irrigated crop production to dryland production. Sprinkler irrigation systems such as side roll, tow lines, hand move, side move with trail lines etc. and surface irrigation depend on root zone soil water storage to extend intervals between …
The Subject Matter And Content Emphases Of Secondary Home Economics Programs In South Dakota, Darlys Olson Zaske
The Subject Matter And Content Emphases Of Secondary Home Economics Programs In South Dakota, Darlys Olson Zaske
Electronic Theses and Dissertations
The purpose of this study was to describe secondary home economics programs in South Dakota. Specifically, it was designed to identify subjects being taught and pervasive themes running throughout the subjects of home economics programs. A secondary objective was to investigate the relationship between curricular emphases and certain characteristics of the school and teacher. Variables studied were 1) teaching experience, 2) class enrollments, 3) school size, 4) personal preference of teaching subject, and 5) professional interaction. To determine the curriculum emphases of the teachers, the Curriculum Orientation Survey (COS), developed by Hall, was used to measure the extent to which …