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Distribution And Importance Of Stockdams, Dugouts, And Natural Wetlands To Breeding Waterfowl In South Dakota, James J. Ruwaldt
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 …
A Study Of Factors Associated With Outdoor Recreational Participation In South Dakota, James W. Delong
A Study Of Factors Associated With Outdoor Recreational Participation In South Dakota, James W. Delong
Electronic Theses and Dissertations
Participation by South Dakotans in selected areas of outdoor recreation was studied to determine varying extents of participation and associated selected sociodemographic, socialization and attitudinal factors. A statewide random sample of 474 heads-of-households (or their spouses) was selected and interviewed using a pretested schedule. The findings were present in three forms: a descriptive summary, a nonparametric analysis of association and a multivariate analysis. The descriptive analysis revealed fishing, hunting and lakeside camping or picnicking to be the activities participated in most frequently. Conversely, water-skiing, ice fishing and snowmobiling were participated in least. Analysis of association showed that each of the …
Tetrazoline Chemistry, Norman Wallace Rokke
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 …
Integrated Numerical Simulation Of Drip Irrigation With Subsurface Drainage, James Ray Hoover
Integrated Numerical Simulation Of Drip Irrigation With Subsurface Drainage, James Ray Hoover
Electronic Theses and Dissertations
A numerical method and model were developed to simulate soil moisture during steady-state and transient flow toward a tile drain. Intermittent application of water by drip irrigation and rainfall were simulated by use of finite difference approximation equations. No known analytical solution for these flow situations exists because of the complex mathematics describing unsaturated flow in the soil. The computer model is based on the electrical resistance network analog. The explicit finite difference equations were solved by the successive over-relaxation method for steady-state flow and by iteration for transient soil moisture flow. The computer program for the model consists of …
Economic Analysis Of The Management Of Idle County Funds In South Dakota, Wanda M. Leonard
Economic Analysis Of The Management Of Idle County Funds In South Dakota, Wanda M. Leonard
Electronic Theses and Dissertations
The objective of this report is to compute the potential earnings of a small county in South Dakota, that by comparison to other counties in the state, is in a relatively good position with respect to the investment of idle cash funds. The assumption is that if a county with a relatively good investment program can earn additional income, the potential revenue for counties with a more modest investment program would be even greater.
Cytopathology Of Barley And Corn Leaf Tissue Infected With The Nd18 Strain Of Barley Stripe Mosaic Virus, Charles R. Mcmullen
Cytopathology Of Barley And Corn Leaf Tissue Infected With The Nd18 Strain Of Barley Stripe Mosaic Virus, Charles R. Mcmullen
Electronic Theses and Dissertations
The distribution of the ND18 strain of barley stripe mosaic virus (BSMV) in barley (Hordeum vulgare L.) and corn (Zea mays L.) leaf tissue was studied with light and electron microscopes. Virions were detected in the cytoplasm of barley mesophyll cells, subsidiary, guard and epidermal cells, vascular parenchyma cells, sieve and tracheary elements. Nuclear virus was found in barley mesophyll cells. Ultrastructural cytopathological changes were greatest in the inoculated leaf of barley which contained fewer virus particles than either primary acute or chronically infected tissues. Primary acute and chronically infected barley tissues contained intracellular virions scattered in the cytoplasm, in …
Induction Of Parturition In The Ovine, Ernest L. Harman
Induction Of Parturition In The Ovine, Ernest L. Harman
Electronic Theses and Dissertations
The effects of flumethasone and prostaglandin F2 (PGF) on the time of parturition were studied in the ewe. Pregnant ewes with known conception dates were allotted into a 3 x 3 x 2 factorial designed experiment (1973 study) and into a completely random designed experiment (1974 study). In the 1973 study treatments consisted of three hormones (flumethasone, PGF and saline control), three levels (low, .5 mg flumethasone, 5 mg PGF, 1 cc saline; medium, 1.0 mg flumethasone, 10 mg PGF, 2 cc saline; high, 1.5 mg flumethasone, 15 mg PGF, 3 cc saline) and two routes of administration (IM …
Prevalence Of Listeria Monocytogenes In A Bovine Associated Environment, Verne D. Brakke
Prevalence Of Listeria Monocytogenes In A Bovine Associated Environment, Verne D. Brakke
Electronic Theses and Dissertations
Listeria monocytogenes has emerged into the realm of disease causing bacteria as a pathogen of public health importance. Its opportunistic and ubiquitous nature has led to an ever increasing number of case reports implicating this organism in human and animal disease. Following its discovery Listeria has been observed in many countries from the tropics to the arctic (6). In addition to human subjects, Listeria has been found with a very wide host range which includes 37 mammals, 17 fowls, ticks, fish, crustaceans, silage, soil, dust, slaughter house waste, stream water, sewage and mud.
A Philatelic Price Model, Terry Gene Doversberger
A Philatelic Price Model, Terry Gene Doversberger
Electronic Theses and Dissertations
The purpose of this thesis is to develop a model which will explain the 9175 market price of single, uncancelled, United States postage stamps of regular or commemorative issue to philatelists. This model was also tested for ability to predict future prices of these stamps. Commemorative stamps are special issues which commemorate some anniversary or event of local, national or international importance, or which honor some person. Usually such stamps are used for a limited period concurrently with the ordinary series (regular issue).
Forecasting By Exponential Smoothing, Timothy Paul Cronan
Forecasting By Exponential Smoothing, Timothy Paul Cronan
Electronic Theses and Dissertations
Forecasting is attempting to predict the future. It is an estimate of what the future demands. There are many ways to predict the future or to forecast. The purpose of this paper is to present various forecasting techniques. Concentrating on exponential smoothing. Exponential smoothing is a method of forecasting that uses the least possible amount of past data, reflecting those past movements in the data. This paper will point out the effects of external information of forecasts and how exponential smoothing is used in forecasting. It will attempt to show some of the more important application of forecasting. An important …
Effect Of Rhenium On Nitrogenase Activity Of Azotobacter Effect Of Rhenium On Nitrogenase Activity Of Azotobacter Vinelandiiinelandii, Stephen L.R. Erdody
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 …
The Development Of Validated Metric Teaching Materials: Basics, Barbara Vanhove Hoff
The Development Of Validated Metric Teaching Materials: Basics, Barbara Vanhove Hoff
Electronic Theses and Dissertations
The purpose of this study was to develop a “Basic Metric” self-instructional programs for use by female adult consumers who wish to learn to use the metric measurements. Such a study was not conceived as an experimental or descriptive type of research but rather as a creative project in which innovative teaching materials are developed. Although the creative element is of major importance, the use of programming required a scientific procedure for developing the teaching materials. The sequence of steps in programming is similar to the steps advocated by systems designers. Field testing of teaching materials was a second purpose. …
Human Problem Solving Of Two Applied Tasks In Economic Allocation, Jerry Alan Kackley
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 …
Metabolic Studies Of 2, 2', ³⁶4, ³⁶4', 5, 5'-Hexachlorobiphenyl In Guinea Pigs, Margaret Ann Pearson
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.
Biologic Properties Of Midwestern Isolates Of Pseudorabies, Pamela F. Leslie
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 …
Free Will And Destiny In Chaucer, Irvine Lee Patten
Free Will And Destiny In Chaucer, Irvine Lee Patten
Electronic Theses and Dissertations
This short comparison of a very old and a very new philosophy has been by way of introduction to my own topic, in a study which I hope will demonstrate some important aspects of how we have examined the extent of own responsibility in shaping our fate. My focus will be on the late Middle Ages and specifically on three of Chaucer’s works as they are borrowed in plot and character from Boccaccio, and how they are reworked to show the importance of moral self-determination. These works are Troilus and Creseyda, The Knight’s Tale, and The Monk’s Tale as they …
Effectiveness Of Selected Media For Removal Of Hydrogen Sulfide, Robert C. Renner
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.
Remote Sensing Of Water Quality In Prairie Lakes, Brian D. Thoreson
Remote Sensing Of Water Quality In Prairie Lakes, Brian D. Thoreson
Electronic Theses and Dissertations
The possibility of predicting prairie lake water quality using remote-sensing data during the 1974 open water season was investigated. Water quality samples were collected to coincide with satellite (LANDSAT-1) overpasses ad low-altitude aircraft flights. Twelve different remote-sensing estimates were taken from LANDSAT-1 imagery, low-altitude aerial photographs, ground-based radiometer, and ground-level photographs. These were correlated with prairie lake water transparency (secchi depth) and algae abundance (chlorophyll ‘a’ and total cell concentrations). For predictive purposes multiple regression analysis were performed using the three water quality parameters as independent variables. The correlations between the three water quality parameters and physical factors (rainfall, solar …
Computer Simulation Of Western Equine Encephalitis Virus Transmission To Horses In South Dakota By The Culex Tarsalis Mosquito, Richard Frank Schryer
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 …
The Role Of Cooperatives In Improving The Quality Of Life In The First Planning And Development District Of South Dakota, Gordon D. Vande Voorde
The Role Of Cooperatives In Improving The Quality Of Life In The First Planning And Development District Of South Dakota, Gordon D. Vande Voorde
Electronic Theses and Dissertations
The problem considered in this study may be broadly stated as an evaluation of the overall rural development impact of farmer cooperatives in improving the quality of like in a rural area. To guide the development of this research, the general problem statement will be divided into a number of specific objectives as follows: 1. Determine the past and current impact of farmer cooperatives on community facilities and services, 2. Determine the past and current impact of farmers cooperatives on economic development of a community, 3. Determine the past and current impact of farmer cooperatives on improving the abilities and …
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
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 …
The Relationship Of Freestyle Sprinting Ability In Swimming To Selected Measurable Traits, Keith Charles Sutton
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.
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 …
A Field Study Of The Most Common Causes Of Broadband Facsimile Remakes., Nicholas Barbosa Jr.
A Field Study Of The Most Common Causes Of Broadband Facsimile Remakes., Nicholas Barbosa Jr.
Electronic Theses and Dissertations
What is the need for facsimile transmission? With the rising postal and other transportation and distribution costs, there· certainly is a pressing need for facsimile transmission today. Facsimile transmission is simple; it involves sending something from one point _to another. All one has to consider is resolution, which refers to the closeness at which the copy is examined, usually the number of lines used to scan one inch, speed and cost. High resolution facsimile can be utilized for remote printing of newspapers utilizing the satellite printing plant concept. By using facsimile, camera-ready material can be put on a scanner, which …
The Relationship Between Sociological And Biographical Variables And Self-Concept Scores Of Four- And Five-Year Old Children, Linda E. Derscheid
The Relationship Between Sociological And Biographical Variables And Self-Concept Scores Of Four- And Five-Year Old Children, Linda E. Derscheid
Electronic Theses and Dissertations
The purpose of this study was to provide information concerning factors that could relate to the self-concept development of four-and five-year old children. The factors studies were: age, sex, birth order family size, socioeconomic status, whether or not the child had attended nursery school, day care, or Head Start, how long the child had attended the preschool program, and the type and quality of the preschool environment.
Relationships Of Scores Achieved On A Crawl Stroke Rating Form And Selected Measures Of Stroke Efficiency In Swimming, Bradley Laverne Erickson
Relationships Of Scores Achieved On A Crawl Stroke Rating Form And Selected Measures Of Stroke Efficiency In Swimming, Bradley Laverne Erickson
Electronic Theses and Dissertations
The continuous surpassing of records is an indication that performances in competitive swimming are steadily improving. Success in competition depends upon a swimmer’s ability to “maintain a high velocity over time.” Factors which determine the ability to maintain high velocity include muscle endurance, efficiency, and total capacity for energy expenditure. Though various training methods, the swim coach has been able to increase physiological change in his athletes, including muscular endurance. A valid measure for determining energy expenditure is through analysis of data obtained by testing for oxygen consumption. There is also a linear relationship between oxygen consumption and heart rate. …
Criteria For Determining Feasibility Of Rural Water Supply Systems In Livestock Production Areas, Lynn L. Peterson
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 …
Nitrogen Fixation By Selected Native Legumes Of South Dakota, Ronald S. Shave
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.
A Comparative Study Of Ribonuclease From Two Winter Barley Cultivars Based Upon Separation, Purification And Partial Characterization Of Rna-Degrading Enzymes, Raymond Sze-Chung Wong
A Comparative Study Of Ribonuclease From Two Winter Barley Cultivars Based Upon Separation, Purification And Partial Characterization Of Rna-Degrading Enzymes, Raymond Sze-Chung Wong
Electronic Theses and Dissertations
The differences in the response to KCl of the RNA-degrading enzymes of two barley cultivars, “Dicktoo” (a hardy type) and "Tennessee Winter” (a non-hardy type), were investigated. Two types of enzymes, ribonuclease (RNase) and nuclease, were separated from crude extracts by disc electrophoresis. The electrophoretic gels were assayed for RNA-degrading activity in the presence and absence of EDTA (EDTA is a nuclease inhibitor). By means of density gradient isoelectric focusing, the nuclease preparation from Tennessee Winter was shown to have an isoelectric point between 5.3 and 5.5, while the nuclease preparation from Dicktoo has three isoelectric points of 4.9, 5.5 …
The Infiltration Of A Lagoon Effluent For Final Waste Treatment, William B. Sherman
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 …