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Distribution And Importance Of Stockdams, Dugouts, And Natural Wetlands To Breeding Waterfowl In South Dakota, James J. Ruwaldt Jan 1975

Distribution And Importance Of Stockdams, Dugouts, And Natural Wetlands To Breeding Waterfowl In South Dakota, James J. Ruwaldt

Electronic Theses and Dissertations

Wetland distribution and utilization by breeding waterfowl of stockdams, dugouts, and natural wetlands were investigated in South Dakota during 1973 and 1974. Wetlands in South Dakota were estimated to encompass 590,499 ha and to total 631,557 basins. Natural ponds and lakes comprised 74.7 percent of the wetland area and 46.0 percent of the total number. Stockdams composed 13.9 percent of the wetland area and 14.0 percent of the number, and dugouts 0.3 percent and 8.1 percent of the state’s wetland area and number respectively. Ninety-one percent of the ponds and lakes were found east of the Missouri River and 86.7 …

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Results And Evaluation Of An Aerial Creel Survey Technique On Lake Sharpe, South Dakota, Bruce R. Schmidt Jan 1975

Results And Evaluation Of An Aerial Creel Survey Technique On Lake Sharpe, South Dakota, Bruce R. Schmidt

Electronic Theses and Dissertations

A creel survey, consisting of two independent surveys, was conducted on Lake Sharpe, South Dakota from May, 1973, through May, 1974. An aerial fisherman count was used to estimate fishing pressure and an angler interview survey was used to estimate catch rates, mean party size, mean fisherman day, and residence of the anglers. The results of the two surveys were combined to estimate harvest. The separate surveys were combined to estimate harvest. The separate surveys allowed optimum stratification and allocation of sampling effort for each. Estimated fishing pressure was 32,643 fisherman-hours, ±9.60% at the 95% confidence level, and the total …

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Factors Affecting The Development Of Lipase Flavor In Butter, Lawrence I. Bell Jan 1975

Factors Affecting The Development Of Lipase Flavor In Butter, Lawrence I. Bell

Electronic Theses and Dissertations

Current trends in the dairy industry have resulted in an increase in the incidence of lipase flavored butter. Raw cream, fresh and aged 24 h, was divided into 3 fractions and heat treated at temperatures of 72 C, 85 C, and 93 C. Each fraction of cream was churned into butter, with the butter divided and stored at -28. 9 C and 4.4 C. Lipase flavor development was measured organoleptically, by acid degree value (ADV), and free fatty acids (FFA) using a colorimetric procedure. Age of the cream had a significant effect (P< .01) on FFA and. ADV .levels, whereas heat treatment .of the cream had a significant effect (P< .01) on flavor only. Storage time had a significant effect (P< .01) on FFA, ADV, and flavor and the temperature of storage had a significant effect (P< .01) on FFA ·and flavor. Correlation between FFA and ADV was 0.86. There was no correlation between flavor and either JTFA or ADV

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Effect Of Rhenium On Nitrogenase Activity Of Azotobacter Effect Of Rhenium On Nitrogenase Activity Of Azotobacter Vinelandiiinelandii, Stephen L.R. Erdody Jan 1975

Effect Of Rhenium On Nitrogenase Activity Of Azotobacter Effect Of Rhenium On Nitrogenase Activity Of Azotobacter Vinelandiiinelandii, Stephen L.R. Erdody

Electronic Theses and Dissertations

In recent years the biochemical aspects of molybdenum have come under increasing investigation. One phase of the investigation has centered on the function of Mo in nitrogenase enzymes. One way to study the biochemical function of an element with another which may mimic its function. A vanadium containing mitrogenase from Aztobacter vinalaudii has been prepared which displays properties indicative of replacement of the Moo by V. Attempts to prepare an active tungsteu analog have been unsuccessful as W exhibits an inhibitory effect. It has been suggested that rhenium analogs of Mo-nitrogenase rather than V or W, should be more useful …

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The Construction Of A Racquetball Skills Test Battery For Beginning College Women, Barbara K. Halverson Jan 1975

The Construction Of A Racquetball Skills Test Battery For Beginning College Women, Barbara K. Halverson

Electronic Theses and Dissertations

The sport of racquetball has rapidly gained popularity throughout the country. Racquetball evolved from the game of paddleball, and confusion in the use of these two terms continues to exist. Paddleball is played with a solid paddle and a Pennsylvania 100 ball which has a pin hole through the surface. Racquetball is laying with a strung racquet and a Seamless 558 ball. The recently organized (1968) International Racquetball Association sponsors singles and doubles competition for men and women of all ages, from under nineteen(Juniors) to over forty(Masters). Racquetball has also experienced rapid growth in popularity among college women as a …

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Selected Flexibility Exercises And Baseball Hitting Proficiency, Kenneth Bernard Krogman Jan 1975

Selected Flexibility Exercises And Baseball Hitting Proficiency, Kenneth Bernard Krogman

Electronic Theses and Dissertations

There appears to be an increasing interest among baseball coaches n the development of a flexibility program to improve hitting consistency. Through an analysis of the form used for hitting a baseball, fisher revealed that a full powered swing is dependent of the range of motion in the body’s joints and that a subsequent amount of force is lost when flexion in the hips is decreased. The identification of selected flexibility exercises related to the success of hitting and implementation into training programs would be of significant value to coaches and players alike. The purpose of this study was to …

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Effects Of Manganese Chloride On Blood Formation In Rabbits, Donald Wayne Kerr Jan 1975

Effects Of Manganese Chloride On Blood Formation In Rabbits, Donald Wayne Kerr

Electronic Theses and Dissertations

The objectives of these investigations were to determine the effect of manganese on the following: red and white blood cell counts, differential counts, packed cell volume, hemoglobin, reticulocyte composition, and manganese and iron determinations in respect to possible changes in these measurements with prolonged exposure to manganese.

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Human Problem Solving Of Two Applied Tasks In Economic Allocation, Jerry Alan Kackley Jan 1975

Human Problem Solving Of Two Applied Tasks In Economic Allocation, Jerry Alan Kackley

Electronic Theses and Dissertations

The objective of this paper is to examine in depth one aspect of human problem solving; specifically, to deal with a task environment familiar to the managerial practiocioner --- one of allocating scarece resources in an equitable and efficient manner toward the accomplishment of a defined goal. The central focus will be on measuring the problem solver’s relative efficiency and equitability in solving this allocation task using two different sets of data. To observe the problem solver’s thought processes, the “thinking aloud protocol” will be used. The use of protocols in discussed in Chapter 2. Of prime importance in the …

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An Analysis Of The South Dakota Retail Sales Tax, Gordon V. Karels Jan 1975

An Analysis Of The South Dakota Retail Sales Tax, Gordon V. Karels

Electronic Theses and Dissertations

The overall objective of the study was to analyze the structure and adequacy of the South Dakota retail sales tax. The following specific objectives guided the research. 1. To analyze the tax structure of the State of South Dakota and the revenue and expenditure patterns of the state over the past 10 years as an indication of the overall adequacy of the tax structure. 2. To examine the characteristics of the South Dakota sales and use tax with emphasis on the tax base. 3. To examine the sales tax in relation to principles of tax equity. 4. To estimate the …

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Factors Affecting Efficiency To Weaning In Angus, Charolais, And Reciprocal Cross Cows, Douglas A. Marshall Jan 1975

Factors Affecting Efficiency To Weaning In Angus, Charolais, And Reciprocal Cross Cows, Douglas A. Marshall

Electronic Theses and Dissertations

The purpose of this study was to gain understanding of the variables affecting efficiency of cows and production of their calves to weaning. Specific effects of cow size, condition and milk production on efficiency were examined along with reproductive performance of the experimental females to determine net weaning efficiency. An attempt was also made to examine traits that could be used in practical situations to detect differences in cow efficiency. Considerable research has been conducted to evaluate post weaning efficiency of nutrient utilization, but due to expense and time requirements individual feeding of cows and their progeny has been limited. …

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A Research Study Of The Occupational Safety And Health Act Of 1970 And Its Implications On Graphic Arts Education On The Secondary Level, Raymond Eugene Maendele Jan 1975

A Research Study Of The Occupational Safety And Health Act Of 1970 And Its Implications On Graphic Arts Education On The Secondary Level, Raymond Eugene Maendele

Electronic Theses and Dissertations

Most of us have, during the last few years, heard reference to OSHA—the Occupational Safety and Health Act of 1970. Yet few of us have received any information as to its implication to the educational system, and more specifically to the industrial educator. Niel Head of the National Federation of Independent Businesses said: “They’ve drawn up the regulations so it would take a Philadelphia lawyer to figure them out.” I do not profess to be a Philadelphia lawyer; however, the purpose of this paper is (1) to clarify the scope of Williams-Steiger Occupational Safety and Health Act of 1970, (2) …

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Biologic Properties Of Midwestern Isolates Of Pseudorabies, Pamela F. Leslie Jan 1975

Biologic Properties Of Midwestern Isolates Of Pseudorabies, Pamela F. Leslie

Electronic Theses and Dissertations

Previously, pseudorabies was not considered to be a problem in the midwest but prevalence of the disease has increased over the last five years. In 1974 along, eight isolations of pseudorabies virus were made at the South Dakota Animal Disease Research and Diagnostic Laboratory from outbreaks in the area of northwest Iowa, Nebraska, and South Dakota. As of February1, 1975, here isolations of pseudorabies virus have been made from outbreaks in the area. Iowa State Diagnostic Laboratory reported a six-fold increase in pseudorabies cases in 197 as compared to the preceding four years (5). A survey of swine in Indiana …

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Metabolic Studies Of 2, 2', ³⁶4, ³⁶4', 5, 5'-Hexachlorobiphenyl In Guinea Pigs, Margaret Ann Pearson Jan 1975

Metabolic Studies Of 2, 2', ³⁶4, ³⁶4', 5, 5'-Hexachlorobiphenyl In Guinea Pigs, Margaret Ann Pearson

Electronic Theses and Dissertations

This study was carried out to investigate the metabolism 2, 21, 4, 41, 5, 51 – Hexachlorobiphenyl (C16-PCB). This isomer is a major containing more than 50% weight-to-weight (w/w) chlorine.1 To investigate this isomer, we obtained it in 36C1 labeled and non-labeled forms. We developed procedures to isolate and purify both forms of the hexachlorobiphenyl for further study. The 36C1 labeled biphenyl was then introduced into test animals for metabolic studies.

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Salmonella Detection By Coulter Counter Volume Displacement Using Specific Antibody Coated Latex, Gita Chandulal Parikh Jan 1975

Salmonella Detection By Coulter Counter Volume Displacement Using Specific Antibody Coated Latex, Gita Chandulal Parikh

Electronic Theses and Dissertations

The present study was designed to determine whether this Coulter Counter for detection of Salmonella typhimurium cells. The latex particles are coated with a specific antiserum which reacts with the particulate antigen, Salmonella cells. An increase in the volume of latex antibody and Salmonella cells is detected by the Coulter Counter data and a teletype to plot the data shortens the time consumption. This method also has a potential to be completely automated.

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A Non-Silver Based Photographic Process And The Crystal And Molecular Structure Of 3,7-Dihydroxyl-1,5-Bis (P-Bromophenyl) Octahydro-1,5 Diazocine, Cary Y. Peters Jan 1975

A Non-Silver Based Photographic Process And The Crystal And Molecular Structure Of 3,7-Dihydroxyl-1,5-Bis (P-Bromophenyl) Octahydro-1,5 Diazocine, Cary Y. Peters

Electronic Theses and Dissertations

A film process based on the reduction of nickel (II) to elemental nickel, which is sensitive to x-ray energy photons as well as electrons, has been reported.1 Research using this process was carried out using copper Kphotons generated from an x-ray source and an electron beam from an electron microscope. Possible advantages of this type of film process are low cost, elimination of darkroom procedures, and the stability of the exposed and unexposed film for long periods of time.

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The Influence Of Soils And Vegetation On Landsat Spectral Signatures, Gary Dean Lemme Jan 1975

The Influence Of Soils And Vegetation On Landsat Spectral Signatures, Gary Dean Lemme

Electronic Theses and Dissertations

The National Aeronautics and Space Administration (NASA) of the United States government has realized the potential and importance of developing operational agricultural inventorying procedures using satellite data. They are actively carrying on an extensive research program titled: “Large Area Crop Inventory Experiment” better known by the acronym LACIE. One of the many areas being investigated is training set selection. Along these lines, a research project was undertaken during the 9174 growing season with the general objective being to study the influence of soils and vegetation on LANDSAT signatures. The specific objectives of the study were: 1. To investigate the relationships …

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Proposed Solid Waste System For Rural Areas Of Brookings County, South Dakota, Arnold A. Putman Jan 1975

Proposed Solid Waste System For Rural Areas Of Brookings County, South Dakota, Arnold A. Putman

Electronic Theses and Dissertations

The State Department of Environmental Protection has stated that its goal is to have all solid waste generated in the State of South Dakota, stored, collected and disposed of in a manner which does not cause environmental degradation, potential health hazards, or nuisances to the citizens of South Dakota or its visitors(1). It is the intent to provide efficient economical solid waste management systems throughout the entire State. In addition to properly managed solid waste disposal sites, it is also desired that efficient, routine collection systems be provided in all communities wherever the population is sufficient to support such a …

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Pit Ventilation Systems Performance In A Model Swine Building, Stephen H. Pohl Jan 1975

Pit Ventilation Systems Performance In A Model Swine Building, Stephen H. Pohl

Electronic Theses and Dissertations

The evaluation of pit ventilation systems performance by comparing air flow velocities, air currents, and evacuation times is needed to develop the information needed for proper engineering design. Therefore, a research project employing scale models of five pit ventilation systems and employing the principles of similitude and dimensional analysis and initiated with the following objectives: 1) To determine the influence of manure pit ventilation system geometry on air removal from a swine building and 2) To evaluate the effects of pit ventilation system geometry on swine building ventilation characteristics.

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Criteria For Determining Feasibility Of Rural Water Supply Systems In Livestock Production Areas, Lynn L. Peterson Jan 1975

Criteria For Determining Feasibility Of Rural Water Supply Systems In Livestock Production Areas, Lynn L. Peterson

Electronic Theses and Dissertations

Feasibility guidelines for proposed and existing community rural water supply systems have been developed around such parameters as population density, size of group, and ability to repay. However, these guidelines were based on more densely populate areas where water is used primarily for domestic purposes. These guidelines do not necessarily fit situations where population density is low and water availability enters in as a factor of livestock production. It is apparent that guidelines need to be developed for such situations. With this intention, the objectives of this study were established as follows: 1. Determine what criteria are pertinent to the …

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Nitrogen Fixation And Other Microbial Activities In Soil On Antelope Range Station, Thomas J. Schneeweis Jan 1975

Nitrogen Fixation And Other Microbial Activities In Soil On Antelope Range Station, Thomas J. Schneeweis

Electronic Theses and Dissertations

This is a study of the symbiotic and non-symbiotic nitrogen fixing organisms on Antelope Range Station. Symbiotic nitrogen fixation is carried out by the native leguminous plants and the bacterial genus Rhizobium. This bacterium causes nodules to form on leguminous plants, and this symbiotic relationship is capable of utilizing gaseous nitrogen as a nitrogen source. Some experimentation was also done on a lichen found throughout the area studies. While speciation was not attempted, the lichen specimens were morphologically similar. These lichens also represented a symbiotic relationship, but in this case a nitrogen fixing blue-green algae formed a thallus with a …

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Effectiveness Of Selected Media For Removal Of Hydrogen Sulfide, Robert C. Renner Jan 1975

Effectiveness Of Selected Media For Removal Of Hydrogen Sulfide, Robert C. Renner

Electronic Theses and Dissertations

The studies described herein represent a preliminary effort toward developing an effective and economic method for controlling odors from anaerobic lagoons. The objectives of this investigation were: 1. To determine experimentally the effectiveness of various materials in reducing odors resulting from anaerobic treatment of wastewater. 2. To provide a recommendation concerning the thickness of the most effective materials for use as a cover to reduce odors from anaerobic lagoons.

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Nitrogen Fixation By Selected Native Legumes Of South Dakota, Ronald S. Shave Jan 1975

Nitrogen Fixation By Selected Native Legumes Of South Dakota, Ronald S. Shave

Electronic Theses and Dissertations

The purpose of this study has been to advance knowledge of the nitrogen fixation potential of selected native legumes. With this objective in mind the investigation has been broken down into three segments. 1. Specimens of native legumes were sought on a state wide basis, collected, identified and preserved in a permanent herbarium. 2. Native legumes which showed good nodulation were evaluated for nitrogen fixing potential. 3. The microsymbiont was isolated from the nodules of selected native legumes and cultured.

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Computer Simulation Of Western Equine Encephalitis Virus Transmission To Horses In South Dakota By The Culex Tarsalis Mosquito, Richard Frank Schryer Jan 1975

Computer Simulation Of Western Equine Encephalitis Virus Transmission To Horses In South Dakota By The Culex Tarsalis Mosquito, Richard Frank Schryer

Electronic Theses and Dissertations

This research is an attempt to develop a computer simulation model that will be capable of illustrating the effect of various factors on the outcome of a simulated equine encephalitis epidemic. It is intended that through computer simulation techniques, I will become possible to better understand the factors that contribute to or reduce the magnitude gained of an encephalitis epidemic in horses. Subsequently, the knowledge gained by computer simulation could provide the groundwork for the development of a model that will be capable of projecting the likelihood of an epidemic based on mosquito populations and WEE infection rates as they …

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The Infiltration Of A Lagoon Effluent For Final Waste Treatment, William B. Sherman Jan 1975

The Infiltration Of A Lagoon Effluent For Final Waste Treatment, William B. Sherman

Electronic Theses and Dissertations

The study and literature herein described was instituted for the purpose of examining the application of the stabilization pond effluent at Madison, South Dakota, to a soil type present in that area. The literature emphasized the importance of investigating the soil and water at each location because of variations witnessed in nearly every land application system that has been studied. With much assistance from officials of Madison, South Dakota, a lysimeter study was performed at the Madison lagoon by passing stabilization pond effluent through local soil,, collecting the resultant water to measure the rate of infiltration and analyzing the resultant …

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Supplementation Of Opaque-2 And Normal Corn With Lysine And Tryptophan For Finishing Swine, John G. Volz Jan 1975

Supplementation Of Opaque-2 And Normal Corn With Lysine And Tryptophan For Finishing Swine, John G. Volz

Electronic Theses and Dissertations

The Purpose of the research reported herein was to further investigate the adequacy of normal and opaque-2 corn as sources of lysine and tryptophan for finishing swine. The criteria used to measure the value of these two amino acids were growth performance, plasma-free amino acids and carcass data.

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Nitrogen Fixation By And Isolation Of Rhizobium Species From Native Legumes From A Tall Grass Prairie In South Dakota, Richard S. Steece Jan 1975

Nitrogen Fixation By And Isolation Of Rhizobium Species From Native Legumes From A Tall Grass Prairie In South Dakota, Richard S. Steece

Electronic Theses and Dissertations

This thesis is concerned primarily with the occurrence of nitrogen fixation in native legumes on burned vs. unburned sections of the tall grass prairie. It is also concerned with the isolation of the root nodule bacteria and their identification as rhizobia. Various other biological data such as plate counts a of soil bacteria and azotobacter plate counts along with the influence of abiotic factors such as temperature, soil moisture and organic matter were determined to see in a relationship could be detected with nitrogen fixation.

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The Relationship Of Freestyle Sprinting Ability In Swimming To Selected Measurable Traits, Keith Charles Sutton Jan 1975

The Relationship Of Freestyle Sprinting Ability In Swimming To Selected Measurable Traits, Keith Charles Sutton

Electronic Theses and Dissertations

Through reading previous studies, corresponding and talking with respected swimming coaches, and drawing from personal experience, the present writer identified and tested physical traits thought to influence a swimmer’s speed. Although muscular strength of the arms and good flexibility have long been accepted by most coaches as an asset to the speed swimmer, the other variable were selected on the basis of their anticipated relationship to swimming speed. The purpose of this study was to investigate, by means of objective tests, the relationship of selected physical characteristics to performance by swimmers in a forty-five yard freestyle sprint.

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Characteristics Of Children's Educational And Recreational Program Personnel In Children's Hospitals And Pediatric Departments Of Large General Hospitals In The United States, Harriet Darling Willoughby Jan 1975

Characteristics Of Children's Educational And Recreational Program Personnel In Children's Hospitals And Pediatric Departments Of Large General Hospitals In The United States, Harriet Darling Willoughby

Electronic Theses and Dissertations

With these objectives in mind, this study attempts to answer the following questions: 1. What is the number of children’s hospitals and pediatric department of large general hospitals in the United States having children’s educational and/or recreational program as compared with 1966 and 1971? 2. What skills and competencies do administrators perceive as necessary and desirable in child care workers? 3. What are the educational and personal characteristics of present children’s educational and/or recreational program administrators and staff? In addition to these specific questions, some information was sought about types of programs, the number of children and staff involved, placement …

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Encephalitis Epidemiology In South Dakota : The Development And Use Of An Encephalitis Simulation Model And A Computerized Human Serum Bank To Determine Western And St. Louis Encephalitis Activity, Curtis Dean Wilson Jan 1975

Encephalitis Epidemiology In South Dakota : The Development And Use Of An Encephalitis Simulation Model And A Computerized Human Serum Bank To Determine Western And St. Louis Encephalitis Activity, Curtis Dean Wilson

Electronic Theses and Dissertations

The investigation reported here represents an attempt to relate a virus vector simulation model with field observations made in South Dakota over the past years. The viruses that will be examined are two encephalitis viruses, western equine encephalitis (WEE) and St. Louis encephalitis (SLE). Since the encephalitis viruses are grouped within the arboviruses, viruses transmitted by an arthropod vector, any epidemiological study of the human and horse encephalitis outbreak process must include a study of the vector, in this case mosquitoes, and the factors affecting that vector. It is this complex relationship of virus, vector and hosts that led those …

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Tetrazoline Chemistry, Norman Wallace Rokke Jan 1975

Tetrazoline Chemistry, Norman Wallace Rokke

Electronic Theses and Dissertations

It was of interest to investigate the chemistry of some tetrazolines since they might be sources of heteroatomic analogues of trimethylenemethane. In addition, they might provide alternate means of synthesis of small ring compounds such as diaziridinones and diaziridineimines. New compounds which were prepared are 1-(2,6-dimethylphenyl)­ tetrazoline-5-one, 1-(2,6-dimethylphenyl)-4-methyltetrazoline-5-one, l-phenyl-4-methyl-5-iminotetrazoline, l-phenyl-4-methyl-5- methyliminotetrazoline, and l-phenyl-4-methyl-5-methyliminotetrazoline methiodide. The mass spectra of the tetrazolines investigated are characterized by ring fragmentations which are helpful in determining their structure. In addition, fragmentation represents one of the few examples of a retro-1,3-dipolar cycloaddition reaction initiated by electron impact. The monosubstituted tetrazolines are thermally unstable. The course of …

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