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Characterization Of Cell-Cell Interactions In Normal And Tw32 Homozygous Preimplantation Mouse Embryos, Phyllis M. Johnson
Characterization Of Cell-Cell Interactions In Normal And Tw32 Homozygous Preimplantation Mouse Embryos, Phyllis M. Johnson
Electronic Theses and Dissertations
Immediate objectives of the following studies were to characterize and compare normal versus lethal mutant (tW32/tW32) cellular interactions during preimplantation mouse development. Principal experimental methods used included embryo culture and microscopy. Control and mutant embryos were analyzed in vitro to identify chronological events and phenotypic characteristics of tW32 homozygotes. Cell-cell associations of uncompacted and compacted 8-cell control (ICR) embryos were analyzed by quantitative electron microscopy. Lastly, light microscopic analyses were performed on control and mutant (tW32/tW32) morulae.
Correlates Of Leadership Attractedness Among Instrumental And Expressive Voluntary Service Organizations In Fall River And Meade Counties Of South Dakota, William Wakefield
Correlates Of Leadership Attractedness Among Instrumental And Expressive Voluntary Service Organizations In Fall River And Meade Counties Of South Dakota, William Wakefield
Electronic Theses and Dissertations
A study of the voluntary service organizations in Fall River and Meade counties of South Dakota was conducted during 1975 to determine: 1. The various voluntary associations in Fall River and Meade counties and their functions. 2. The leaders of the various voluntary associations in these two counties, their socioeconomic characteristics, and their attractedness to these organizations. 3. Whether those leaders who are characterized as either instrumental or expressive members have joined voluntary associations because of the association's perceived instrumental or expressive orientation, or because of some other not so apparent reasons. The respective leader of the voluntary associations is …
Growth, Reproduction And Blood Characteristics Of Hereford Females, Harold R. King
Growth, Reproduction And Blood Characteristics Of Hereford Females, Harold R. King
Electronic Theses and Dissertations
The objective of this experiment was to measure the effects of level of wintering nutrition and pasture treatment upon growth and reproduction of Hereford heifers from weaning to 4 1/2 years of age. Levels of certain blood constituents were determined at periodic intervals throughout the study as additional indicators of adequacy in intake for some major nutrients and for measures of general health of the animals. Data pertaining to weight and feed are reported in the English system, even though the metric system was used in the Review of Literature section. This was considered desirable in view of present common …
Purine-Thiamine Anabolism During Cellular Morphogenesis In Myxococcus Xanthus, Wen-Cherng Tsai
Purine-Thiamine Anabolism During Cellular Morphogenesis In Myxococcus Xanthus, Wen-Cherng Tsai
Electronic Theses and Dissertations
Purine-thiamine anabolism during cellular morphogenesis in Myxococcus xanthus was investigated. One of the approaches was to test vegetative and myxospore (2.5 h and 8 h) extracts of M. xanthus CW-2 for their ability to synthesize the second de novo intermediate, 5'-phosphoribosylglycinamide, from beginning precursors either by way of phosphoribosyl-pyrophosphate amidotransferase (EC 2.4.2.14) or ribose-5-phosphate aminotransferase. Results indicate the presence of both the amido- and aminotransferases in both types of extracts, and both enzymes appear to be present at about the same level (per milligram of protein) in vegetative cells, myxospores (2.5 h and 8 h), and in a bacterial prototype, …
Drip And Sprinkler Irrigation Of Carrots And Onions, James D. Melstad
Drip And Sprinkler Irrigation Of Carrots And Onions, James D. Melstad
Electronic Theses and Dissertations
Many specialty crops, especially vegetables, are shallow rooted and sensitive to periods of moisture stress. This makes irrigation of vegetables necessary to their production in South Dakota since summer rainfall is normally both inadequate and undependable. A study was initiated in conjunction with the South Dakota Agricultural Experiment Station and the Water Resources Institute to evaluate irrigation of specialty crops in eastern South Dakota. Drop and sprinkler irrigation were utilized for the irrigation of two specialty crops presently grown in South Dakota, carrots and onions. The study was initiated with the following objectives: 1. To compare carrots and onion yields …
High-Rate Infiltration-Percolation Treatment Of Wastewater To Satisfy Effluent Requirements, Dayton H. Alsaker
High-Rate Infiltration-Percolation Treatment Of Wastewater To Satisfy Effluent Requirements, Dayton H. Alsaker
Electronic Theses and Dissertations
The treatment of wastewater to alleviate our freshwater needs and protect the environment at a reasonable cost is a major problem in the world today. The application of partially-treated wastewater to the land may be one method of solving this problem. Land application is neither a new concept, nor one that will solve all treatment problems, but it is likely to play an ever-increasing role in water pollution control planning. The Water Resources Institute at SDSU sponsored the project in its initial year of 1974. During this time much of the construction of the three infiltration percolation basins was completed. …
Morphological, Biochemical And Fluorescent Antibody Studies Of Haemophilus Somnus, Danny W. Chladek
Morphological, Biochemical And Fluorescent Antibody Studies Of Haemophilus Somnus, Danny W. Chladek
Electronic Theses and Dissertations
Haemophilus somnus was the tentative name given in 1969 to a fastidious gram negative pleomorphic coccobacillus which was consistently isolated from cattle affected with a clinical syndrome called thrombo embolic meningoencephalitis (TEME)(1). The organism was initially classidied as an Actinobacillus actinoides- like organism, but because of its demand for a blood base for primary isolationit was reclassified as Haemophilus-like. Bailie then designated the species name somnus, referring to the sleepiness commonly exhibited by TEME affected cattle(1). In this study, the biochemical reactions of 50 H. somnus isolants recovered from bovine specimens submitter to the South Dakota …
Utilization Of Fly Ash In The Removal Of Orthophosphate From Water Samples, Marla Rae Behm
Utilization Of Fly Ash In The Removal Of Orthophosphate From Water Samples, Marla Rae Behm
Electronic Theses and Dissertations
The ability of different fly ash samples to remove orthophosphate from standard phosphate solutions and from wastewater samples is reported. The results of studies to determine the temperature, the amount of fly ash, and the time necessary for maximum orthophosphate removal are included. The mode of action, whether by absorption onto the fly ash or by a precipitation reaction with one or more of the soluble components from the fly ash, is also investigated. The chemical compounds present in the fly ash, as determined by x-ray diffraction, are also included.
The Development Of Validated Metric Teaching Materials : Length, Joanne Parry Dankey
The Development Of Validated Metric Teaching Materials : Length, Joanne Parry Dankey
Electronic Theses and Dissertations
The purpose of the present study was to develop a Metric Length self-instructional program to teach adult male and female consumers how to use the meter, the basic unit of length in the metric system. The goal of the project was to create a self-paced program containing instructional materials that were totally individualized. The researcher chose this approach because adult education programs have found individualized instruction to be very effective. Self-instructional programming has been found to be effective for mastery level learning. The goal of this program is to help consumers think metric and to use these units in their …
Electrical Safety In The Hospital, William Ray Engle
Electrical Safety In The Hospital, William Ray Engle
Electronic Theses and Dissertations
Electrical safety has become n important part of hospital management. The potential danger to patients and staff has increased, as health care becomes more sophisticated. Due to the unique situation that exists in hospitals, most hospital personnel do not understand the problems that occur. The problem is greater in smaller hospitals that do not have the time, money or qualified personnel to deal with the problem. Hospital electrical safety is not a complex problem. A basic safety program can be initiated if the personnel have a basic understanding of electricity and its effects on the body. Many nurses in the …
Venezuelan Equine Encephalomyelitis Virus Induced Mammalian And Mosquito Cell Volume Changes As Detected With The Coulter Counter, Richard H. Fulker
Venezuelan Equine Encephalomyelitis Virus Induced Mammalian And Mosquito Cell Volume Changes As Detected With The Coulter Counter, Richard H. Fulker
Electronic Theses and Dissertations
The need exists for a detection system which is specific in its diagnosis of viruses. The system presented in this investigation uses antiserum treated virus infected cell cultures to establish specificity. The need exists for an automated virus detection system. The system described in this thesis uses the Boulter Counter, a computer analysis, and a simplified procedure which makes the system suitable and automation. The need also exists for an inexpensive virus detection system. The system proposed in this investigation uses no expensive animal facilities and it will require reduced man-hours. The final need of a virus detection system is …
Criticism Of The Liberal Intellectual In The Political Fiction Of Mary Mccarthy, Terrill Hyde Huntington
Criticism Of The Liberal Intellectual In The Political Fiction Of Mary Mccarthy, Terrill Hyde Huntington
Electronic Theses and Dissertations
For more than thirty years, Mary McCarthy has served as the conscience of the liberal American intellectual. McCarthy’s method of writing is satire, and she treats both her sympathetic and unsympathetic characters satirically. The characters in her fiction are generally liberal intellectuals who follow one of two patterns. The sympathetic characters are those who, despite their flaws, endeavor to be conscientious, objective and truth seeking. They are plagued by self-doubt and constant awareness o their own limitations. In contrast, her unsympathetic characters are egotistical and self-deluding. Their intellectual capabilities are bent not toward fulfillment of their liberal and humanitarian ideals, …
Hypophosphite Photographic Emulsions, Randal A. Johnson
Hypophosphite Photographic Emulsions, Randal A. Johnson
Electronic Theses and Dissertations
The purpose of this work is to study the sensitivity of emulsions of various hypophosphite salts to irradiation by photons in the x-ray region of the electromagnetic spectrum. This hypophosphate system bears little resemblance to the more common silver halide currently used in emulsions. Consequently, little is known about the reaction conditions necessary to make fast, sensitive emulsions or how to develop resultant latent images. The projects involves the synthesis and characterization of several compounds which have not been extensively characterized in previous work. Characterization of these salts involved the following techniques: Infrared Absorption Spectroscopy, Electron Paramagnetic Resonance Spectroscopy, and …
An Analog Technique For Soil-Tool Systems, Lyle L. Jensen
An Analog Technique For Soil-Tool Systems, Lyle L. Jensen
Electronic Theses and Dissertations
Throughout the history of agriculture man has sought improved methods of tilling soil. Technological developments in recent years have enabled man to apply large amounts of mechanical energy to soil tillage. But, as the energy limitations of the world begin to be realized, the development of more efficient means of soil tillage will become increasingly important. In tillage machine design, as in other engineering design fields, the designer has three basic methods of predicting the performance of a system. Murphy (12) states these methods as (i) application of existing laws and formulas, (ii) observations on the actual systems, and (iii) …
Prediction Of Efficient Player Combinations Among Members Of The South Dakota State University Women's Basketball Squad, Maren Elaine Michaelson
Prediction Of Efficient Player Combinations Among Members Of The South Dakota State University Women's Basketball Squad, Maren Elaine Michaelson
Electronic Theses and Dissertations
The purpose of this study was to determine whether performance by individual members of the South Dakota State University Women’s Basketball Team on the Knox Basketball skills test, could be used to predict scores they received through the use of the Keller Efficiency Rating System while a member of various player combinations under game conditions.
Crop Yield And Economic Analyses Of Selected Multiple Pivot Irrigation Schemes, Michael A. Otterby
Crop Yield And Economic Analyses Of Selected Multiple Pivot Irrigation Schemes, Michael A. Otterby
Electronic Theses and Dissertations
A project connected with the South Dakota University Agricultural Experiment Station was initiated in 1972 to evaluate alfalfa and corn yield response to a management scheme where a center pivot is used on more than one field. The project was to take place in the South Dakota climatic region and to include a limited soil moisture storage situation. In order to present the finding of the project and to evaluate the economics of such a scheme the following objectives of this study were established: 1. To develop production functions for corn and alfalfa that are applicable to South Dakota conditions …
Urban Land Use Inventorying With Small Scale Aerial Photography, Thomas R. Loveland
Urban Land Use Inventorying With Small Scale Aerial Photography, Thomas R. Loveland
Electronic Theses and Dissertations
The underlying aim of this thesis is to show that small scale NASA aerial photography is a valuable planning tool through which urban planners can extract the accurate land use information necessary to their planning and decision making processes. This aim will be achieved through an examination of the following points: 1. The utility of the aerial photography to urban planners possessing little photo interpretation experience or sophisticated equipment for the extraction of information. 2 The accuracy and suitability of the land use information obtained from the interpretation to the urban planning process. 3. The availability of NASA high altitude …
Water Quality Management Study For The Big Sioux River Basin, Thomas L. Thelen
Water Quality Management Study For The Big Sioux River Basin, Thomas L. Thelen
Electronic Theses and Dissertations
This paper deals with the development of a water quality management strategy for the Big Sioux Basin located in eastern South Dakota. The first step in the development of a strategy is the collection and review of all available literature and data for the basin. From this information a physical description of the basin with regard to location, geology, climate, and hydrology can be made. Also, information on the history, population, economy and development of the basin should be included. Comparisons of available surface water quality data of the basin to existing surface water quality standards should be, made to …
Edge Detection And Adjacency Classification In Digital Data Via The Gradient Vector, Michael John Russell
Edge Detection And Adjacency Classification In Digital Data Via The Gradient Vector, Michael John Russell
Electronic Theses and Dissertations
Detection of edges in imagery represented by the matrix of data and classification of the data surrounded by an edge are investigated. An edge detection algorithm is developed and used to locate edges in digitized imagery. An algorithm called the adjacency classifier is developed to classify all groups in adjacent data points that are surrounded by edges. These two algorithms incorporate three important characteristics of the gradient vector: high gradients are inherent at edges, low gradients are inherent at edges, low gradients are inherent within homogeneous objects and gradient vector directions are perpendicular to the edge direction. Computer programs which …
The Vascular Flora Of Ordway Prairie Mcpherson County, South Dakota, Barry L. Hertz
The Vascular Flora Of Ordway Prairie Mcpherson County, South Dakota, Barry L. Hertz
Electronic Theses and Dissertations
The vascular vegetation of Ordway Prairie, a preserve maintained by The Nature Conservancy as an example of virgin prairie in McPherson County, South Dakota, was studied to determine its present composition. The sample comprised representatives of each species recognized in each of the 13 square-mile sections within the prairie, collected in 1975 and 1 9 7 6 . Three hundred nine different species, representing 170 genera in 55 plant families were found. One thousand six hundred forty five permanent herbarium specimens, serving as vouchers for their distribution, are now in the herbarium of South Dakota State University .
Enumeration And Low Temperature Storage Of Obligately Anaerobic Bacteria In Convenience Foods, Craig Edward Bremmon
Enumeration And Low Temperature Storage Of Obligately Anaerobic Bacteria In Convenience Foods, Craig Edward Bremmon
Electronic Theses and Dissertations
The present study was undertaken to determine the kinds and numbers of obligate anaerobes possibly present in various frozen and refrigerated commercial convenience foods. Also, known numbers of pathogenic species of obligate anaerobes were added to various convenience foods and stored at refrigeration and freezing temperatures to determine their die-off or loss in viability. The conditions investigated included the effects of different organisms, different foods, different temperatures, and various storage time periods. The results of this investigation demonstrate to food producers as well as consumers that the possibility does exist for the presence of non-sporeforming obligate anaerobes in frozen or …
Investigation On Several Aspects Of The Epidemiology And Control Of Yellow Leaf Spot On Wheat, Fred L. Bode
Investigation On Several Aspects Of The Epidemiology And Control Of Yellow Leaf Spot On Wheat, Fred L. Bode
Electronic Theses and Dissertations
Yellow leaf spot, caused by Pyrenophora trichostoma (Fr.) Fckl., (Helminthosporium tritici repentis Died.) an ascomycetous fungus of widespread distribution, has played a minor role in the complex of foliar diseases afflicting Triticum species in South Dakota. However, with the introduction of cultural practices that leave large amounts of crop residue in the soil surface, the possibility exists that it may become a serious threat to wheat production in the Northern Great Plains region of the United States. This paper is a report of research on several aspects of the epidemiology and control of yellow leaf spot on wheat, with the …
The Composition And Dynamics Of The Soil Algal Flora In A Western South Dakota Grassland, Judith Ann Freeman
The Composition And Dynamics Of The Soil Algal Flora In A Western South Dakota Grassland, Judith Ann Freeman
Electronic Theses and Dissertations
Forest, Miller and Raizen (1963) and Hutcheson and Olson (1967) have conducted two of the only investigations on soil algae in a prairie ecosystem. The present investigation dealt first with identification of genera of algae present in the soil and an evaluation of their numbers. Secondarily a relationship was established between the numbers of algae in the soil (by species) and their environment, by the correlation coefficients. The variation in the environment was then used to predict the occurrence of algae in the soil using stepwise additive multiple regression analysis. Finally several environmental factors were evaluated under controlled conditions to …
Feasibility Of Establishing A Commuter Airline System In South Dakota, Thomas C. Hruby
Feasibility Of Establishing A Commuter Airline System In South Dakota, Thomas C. Hruby
Electronic Theses and Dissertations
The goal of this research was to evaluate the feasibility of establishing a commuter airline system in South Dakota. Specific research objectives were: 1. To describe in detail the growth and characteristics of the commuter industry in the United States and relate the national experience to the feasibility of a commuter system in South Dakota. 2. To evaluate the technical, economic, and airport facility issues that would affect commuter feasibility in South Dakota. 3. To evaluate the attitudes and opinions of interested groups in potential commuter service points in South Dakota as they relate to commuter feasibility. 4. To conclude …
An Evaluation Of Football Injuries In South Dakota High Schools During The 1975 Season, Micheal George Keough
An Evaluation Of Football Injuries In South Dakota High Schools During The 1975 Season, Micheal George Keough
Electronic Theses and Dissertations
The purpose of this study was to determine the number, location, cause, and frequency of occurrence of football injuries that occurred during the1975 season in South Dakota high schools. An assessment of time-loss due to injury and the extent of medical supervision and care was also included. A second problem was to analyze the data and to formulate recommendations for the improvement of injury prevention and treatment programs.
Cloning Of Lilium Longiflorum And Andropogon Gerardii By Tissue Culture Of Leaf And Floral Parts, Nancy E. Stenberg
Cloning Of Lilium Longiflorum And Andropogon Gerardii By Tissue Culture Of Leaf And Floral Parts, Nancy E. Stenberg
Electronic Theses and Dissertations
The Easter lily, L. longiflorum Thunb. Is known not only for its ornamental value, but also for its large chromosomes, making it ideal cytological material. Big bluestem, Andropogon gerardii Vitman, is a South Dakota native grass. It possesses many desirable characteristics and unique adaptations to this region. This research has primarily dealt with the development of methods for cloning the species L. longiflorum and A. gerardii by tissue culture of leaf and/or floral parts. The pattern of plantlet differentiation from the cultures was also histologically studied.
Nutritional And Cultural Aspects Of Fifth Grade Dietaries, Janice R. Jensen
Nutritional And Cultural Aspects Of Fifth Grade Dietaries, Janice R. Jensen
Electronic Theses and Dissertations
Sixty Brookings, South Dakota students in three schools participated in a group interview, week-long nutrition study designed to determine the pattern and quantity of their dietary intakes. The nutritional adequacies of the diets were determined. Comparisons were made between the student’s dietaries in the different schools and days of the week, family incomes, and levels of mother’s education. Special attention was given to lunch patterns and consumption of vitamins A and C. Using the recommended Dietary Allowance (RDA) as a standard for comparison, less than 25 percent of the students were below the standard for protein, riboflavin, calcium and vitamin …
Physiological Responses And Thermal Comfort Of Subjects In A Tractor Cab, Kenton Richard Kaufman
Physiological Responses And Thermal Comfort Of Subjects In A Tractor Cab, Kenton Richard Kaufman
Electronic Theses and Dissertations
P.O. Fanger of Denmark was the first scientist to generalize the physiological basis for predicting human thermal comfort based on activity level, clothing type, air temperature, air velocity, mean radiant temperature, and air humidity. Thus any activity level and clothing type, it is possible to determine combinations of air temperature, mean radiant temperature, air humidity and relative air velocity which would produce optimum thermal comfort. The Fanger approach has been applied successfully to offices and buildings. It would be quite useful to demonstrate that Fanger’s concepts could be applied to tractor cabs. The objectives of this study were as follows: …
Suitability Of Lagoon Effluent For Irrigation In South Dakota, Allen F. Schmitt
Suitability Of Lagoon Effluent For Irrigation In South Dakota, Allen F. Schmitt
Electronic Theses and Dissertations
In order to classify the water quality of all lagoons on the basis of existing data, a relationship between the water quality of the municipal water supply and the water quality in the lagoon was established. The objectives of this study have been established as follows: 1. To evaluate and classify lagoon effluents with respect to their suitability for irrigation, and 2. To establish a method of determining the probable water quality in the lagoons on the basis of the water quality of the municipal water supply.
An Evaluation Of The Fishery Resource In A Portion Of The James River, South Dakota Scheduled For Channel Modification, Dennis Tol
Electronic Theses and Dissertations
The fish populations of a 193 km (120 mi) section of the James River between Tacoma Park and Redfield, South Dakota that is scheduled for stream modification under the Oahe Irrigation project were evaluated from October 74 to July 76. Twenty-two species of fish were captured in the James River between Tacoma Park and Redfield, South Dakota. The fishes use the area primarily as a spawning ground and nursery for young-of-the-year. Evidence of spawning was found for 19 species of fish. Only a residual population of forage fishes, young-of-the-year of various species, and a few adult black bullheads attempt to …