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Irrigation Requirements And Crop Yields For East-Central South Dakota, Randell J. Van Zee
Irrigation Requirements And Crop Yields For East-Central South Dakota, Randell J. Van Zee
Electronic Theses and Dissertations
A computer model using available weather data was developed to estimate the irrigation requirement, in terms of rate and depth, for east-central South Dakota. The model simulated corn and alfalfa production under center pivot irrigation for various soil types and water management practices. Management Method I applied 25.4 mm when 39.1 mm was depleted from the root zone, thus forming a 12.3 mm buffer for precipitation. Management Method II applied an irrigation when the percent soil water reached depletion levels which varied through the season to conserve water. Net irrigation capacities of 6 mm/day were adequate for maximum corn and …
Free Sugars In Plant Tissues As Determined By Peracetylated Aldononitrile And Ketooxime Derivatives, Stacy L. Unruh
Free Sugars In Plant Tissues As Determined By Peracetylated Aldononitrile And Ketooxime Derivatives, Stacy L. Unruh
Electronic Theses and Dissertations
It has been recognized that there is a connection between exercise and mental well-being and studies conducted on college students and employees by Hayden and Allen, Pauley, Palmer, Wright, and Pfeiffer, and Short, DiCarlo, Steffee, and Pavolou all support a positive relationship between physical exercise and a feeling of positive self-worth. It has also been found by Conroy, Smith, and Felthous and Collingwood that physical fitness can function as a therapeutic intervention for mentally and physically debilitated clients. However, none of these studies segregated the findings according to group or individual exercise activities. The potential influence of the group setting …
The Relationship Between Exercise Activities And Self-Esteem In Elderly Populations, Marcia Taylor
The Relationship Between Exercise Activities And Self-Esteem In Elderly Populations, Marcia Taylor
Electronic Theses and Dissertations
It has been recognized that there is a connection between exercise and mental well-being and studies conducted on college students and employees by Hayden and Allen, Pauley, Palmer, Wright, and Pfeiffer, and Short, DiCarlo, Steffee, and Pavolou all support a positive relationship between physical exercise and a feeling of positive self-worth. It has also been found by Conroy, Smith, and Felthous and Collingwood that physical fitness can function as a therapeutic intervention for mentally and physically debilitated clients. However, none of these studies segregated the findings according to group or individual exercise activities. The potential influence of the group setting …
Price Relationships Between South Dakota Wheat Markets, Destination And Futures Markets, Tyler J. Stowater
Price Relationships Between South Dakota Wheat Markets, Destination And Futures Markets, Tyler J. Stowater
Electronic Theses and Dissertations
South Dakota wheat prices are determined by a complex arbitrage process among commodity complexes, domestic and international destinations, and futures markets. South Dakota's two major classes of wheat, spring wheat and winter wheat, must compete against other classes of wheat and other grains for specific industrial uses. The domestic processing of South Dakota wheat happens primarily outside the state. These domestic markets must compete with international markets. Finally, the futures markets provide a pricing system for arbitrage over time, place and wheat class. The purpose of this thesis is to quantify these relationships. The research objectives, methodology, and sources of …
Sdsu Assembler Generator, Stephen John Stalzer. Stalzer
Sdsu Assembler Generator, Stephen John Stalzer. Stalzer
Electronic Theses and Dissertations
The idea for an assembler generator was based on the author's experience with various microprocessors. Reference [2] gave this author some valuable information on the functioning of an assembler. The software presented here, however, is a completely original design. The design of the software is based on the considerations given above. Reference [3] describes an assembler that was patterned after the high-level language Pascal. The author of this thesis, however, decided to pattern the syntax of the input after that of an assembler. It is hoped that the user of this software would be able to utilize this format more …
Effect Of Level Of Exercise Of Self-Care Agency And Selected Pain Treatment Modalities In Surgical Patients, Candice Pederson
Effect Of Level Of Exercise Of Self-Care Agency And Selected Pain Treatment Modalities In Surgical Patients, Candice Pederson
Electronic Theses and Dissertations
Imagine being in severe pain. Imagine having significant pain for an extended period of time. Imagine being dependent on others for the relief of this pain. And imagine the anxiety associated with the uncertainty of not knowing pain relief will come when it is needed. The preceding are common occurrences among those persons facing illness, injury or surgery. The anxiety surrounding the fear that this pain will not be relieved can augment the pain itself. Post-operative pain can lead to complications such as pneumonia, atelectasis, and immobility. For example, research has indicated that measures which decrease pain may increase lung …
A Cross-Cultural Study Of The Response Of Japanese And American Students To Christian Concepts, Misako Ohkuma
A Cross-Cultural Study Of The Response Of Japanese And American Students To Christian Concepts, Misako Ohkuma
Electronic Theses and Dissertations
The purpose of this study was to examine the response across two selected cultures toward particular concepts in Christian messages. This research attempted to investigate if there was any difference between Japanese and American students studying at universities in the United States in the response to some words carrying Christian concepts. This study used the semantic differential technique to measure the intensity of response that individuals have toward the concepts. The following null hypotheses relative to Christian concepts were tested for this study: 1. There is no difference in response to the concept "Prayer" between Japanese and American students. 2. …
Use Of An Intact Soil Core - Acetylene Reduction Assay To Estimate In Situ Nitrogen Fixation Rates, Christi Ann Nordstrom
Use Of An Intact Soil Core - Acetylene Reduction Assay To Estimate In Situ Nitrogen Fixation Rates, Christi Ann Nordstrom
Electronic Theses and Dissertations
Availability of nitrogen to the plant is a paramount concern in agricultural production today. Crop yields are most often dependent on the level of available nitrogen than any other element. Nitrogen can be supplied to the soil environment by either fertilizers or by the natural processes of decomposition of nitrogen containing compounds and biological fixation of nitrogen. The most abundant source of nitrogen on the earth is the atmosphere. Although the atmosphere is approximately 79% nitrogen, this form is generally unavailable for plant use. Atmospheric nitrogen contains two nitrogen atoms held together by a triple bond which must be reduced …
Impact Of European Corn Borer On Grain And Silage Corn In South Dakota, Brian R. Mueller
Impact Of European Corn Borer On Grain And Silage Corn In South Dakota, Brian R. Mueller
Electronic Theses and Dissertations
The European corn borer, Ostrinia nubilalis, is South Dakota's most damaging pest in corn. Its occurrence is unpredictable and can be very destructive with losses estimated to be 10- 12% of the total corn production. The northern counties in South Dakota have a single generation/year, further south two generations/year often occur. In the area on the southern border and along the Missouri River, a two-generation corn borer is a perennial pest. The damage resulting from European corn borer is al so difficult to predict. Previous authors have used artificial infestations to study yield reductions. A 3% loss/borer was used as …
Effect Of Sprinkler Type And Tillage Practice On A Soil Infiltration Parameter Under A Moving Sprinkler Irrigation Machine, Asghar Moshref-Javadi
Effect Of Sprinkler Type And Tillage Practice On A Soil Infiltration Parameter Under A Moving Sprinkler Irrigation Machine, Asghar Moshref-Javadi
Electronic Theses and Dissertations
A modified Green-Ampt infiltration model was used to determine soil hydraulic conductivity values from surface runoff and sprinkler application data sets. Comparison of three sprinklers and two secondary tillage practices over three irrigation seasons were made to identify the effect of these factors on hydraulic conductivity. Hydraulic conductivity values were different for the low, medium and high-pressure sprinklers used in the study with the hydraulic conductivity values varying inversely with the pressure. Hydraulic conductivities also varied among the years of the study. A ripping (subsoiling) secondary tillage practice increased hydraulic conductivity by the 66 percent when compared with a control …
Censorship And Control Of The University Student Newspaper :17 Case Studies, Elizabeth A. Minden
Censorship And Control Of The University Student Newspaper :17 Case Studies, Elizabeth A. Minden
Electronic Theses and Dissertations
More than 330 colleges and universities throughout the United States offer degrees or programs in journalism. All of these colleges and universities have student newspapers. The student newspaper is one of the most common vehicles for college-educated journalists to receive their initial news-editorial experiences. The roles student newspaper advisers, college administrators, journalism departments, college student governments and college publications boards play in college newspaper management are important because most professional American newspapers prefer to employ college-educated journalists for their news-editorial staffs. According to Melvin Mencher, professor of journalism at Columbia University, to make the student newspaper a bona fide educational …
A Comparison Of Leadership Styles Between College Physical Education Instructors And College Football Coaches, Randy R. Megard
A Comparison Of Leadership Styles Between College Physical Education Instructors And College Football Coaches, Randy R. Megard
Electronic Theses and Dissertations
The study of leadership in physical education and athletics is a relatively new area but some groundwork has already been laid. Knickerbocker considered the primary function of a leader to be organizing the activities of individuals toward the accomplishment of some end through controlling the means for the satisfaction of relevant needs of members of that group. Leadership is personality in action under group conditions. It includes dominant personality traits of an individual and receptive personality qualities of many persons. Many terms and classifications have been used to describe leaders. Bogardus for example described leadership in relation to other people …
Environmental Influences On Root Morphology And Development Of Desi And Kabuli Chickpea (Cicer Arietinum L.), Gasenone Seja Ma Maphanyane
Environmental Influences On Root Morphology And Development Of Desi And Kabuli Chickpea (Cicer Arietinum L.), Gasenone Seja Ma Maphanyane
Electronic Theses and Dissertations
Chickpea (Cicer arietinum L.) is one of the most cultivated legumes in the world. They are grown in Asia, to some extent in Southern Europe, and in parts of North Africa. Chickpeas are categorized into two major types, Desi and Kabuli, also known as Gram and Garbanzo. The two types are primarily distinguished by seed type (color and shape). Desi types have small, sharp-edged seeds with rough coats and colors ranging from light brown to black and pink flowers. Kabuli types have medium to large seeds with smooth thin coats, and cream to white seed color and white flowers. Desi …
The Vector Processor, Ramachandra K. Manja
The Vector Processor, Ramachandra K. Manja
Electronic Theses and Dissertations
The Vector Processor is a device designed for the purpose of economically achieving maximum speed in the computer execution of a group of common scientific and engineering calculations. Each element of the vector, the individual data item, may be a number, a logical value, or a character. A vector's elements must be all of the same type. A vector may have meaning in its own right, or it may be part of an array, a row or a column of elements. Manipulations and operations with vectors have been used by mathematicians, scientists and engineers for centuries in procedures for analysis …
Ozonation Of A Municipal Surface Water Supply To Reduce Trihalomethanes, Odor, Chlorine Demand, And Organics, Pen-Shi Peter Lee
Ozonation Of A Municipal Surface Water Supply To Reduce Trihalomethanes, Odor, Chlorine Demand, And Organics, Pen-Shi Peter Lee
Electronic Theses and Dissertations
The Lake Kampeska Filtration Plant draws its drinking water supply from the Lake Kampeska as a part of the drinking water system for the city of Watertown, South Dakota. In this investigation, an ozonation pilot plant was used to determine the effect of ozonation on trihalomethane formation, odor, chlorine demand, and organics. Spectrophotometric characteristics were analyzed for surrogate parameter studies. Following a preliminary study based on trihalomethane reduction, ozone dosages of 0, 4, 8, and 12 mg/1 were applied to raw water at detention times of 10, 15, and 20 minutes. Analysis of variance showed that: (1) Ozonation of raw …
Selenoamino Acids In Wheat And High-Selenium Yeast, Jinq Lih Lee. Lee
Selenoamino Acids In Wheat And High-Selenium Yeast, Jinq Lih Lee. Lee
Electronic Theses and Dissertations
Selenium has been known to cause toxicity problems in animals since 1928. These problems arise when the element occurs in the soil at reasonably high concentration and is taken up by plants. Animals consuming the plants may then develop certain toxicity signs. More recently selenium has been shown to be an essential nutrient because of its involvement in the enzyme glutathione peroxidase (Rotruck et al., 1973). Evidence has been accumulating that the element may even help protect against cancer in humans (Shamberger, 1970). Consequently, there has been great interest in knowing about the content of selenium in various foods and …
Frontier Agriculture, 1880-1910 : An Area Investigation Of Human And Environmental Factors Involved In The Process Of Agricultural Evolution In Davison County, South Dakota, Chak P. Lee
Electronic Theses and Dissertations
Our curiosity about how an area has developed into what it is today invariably draws our attention to its initial situation. In the United States, the frontier serves as the logical locus upon which questions such as the latter can be laid. Frederick Jackson Turner has popularized the frontier concept by elevating its place in the history of the American national development. What Turner's frontier thesis has for special offer to geography lies in the observation of the frontier as a discrete areal unit, set off, as it was, from the settled area due to the differential pace in the …
Effects Of Eptc And Acifluorfen On Sunflower, Mark E. Law
Effects Of Eptc And Acifluorfen On Sunflower, Mark E. Law
Electronic Theses and Dissertations
Sunflowers (Helianthus annuus L.) rank third in acreage among the world's oil crops. Approximately 185, 000 ha of sunflowers are grown in South Dakota each year. Despite sunflower's economic importance, few herbicides are available for use in the crop and many of the herbicides commonly used on soybeans (Glycine Max (L.) Merr.) and corn (Zea mays L.) will harm sunflowers. Therefore, weed infestations are a major factor confronting the sunflower grower. Wild mustard (Brassica kaber (DC.) Wheeler) and green foxtail (Setaria viridis (L.) Beauv) commonly infest sunflower fields in North and South Dakota. According to a survey in North Dakota, …
Differential Responses Of Oat Varieties To 2, 4-D Amine And Mcpa Amine, James William Lammers. Lammers
Differential Responses Of Oat Varieties To 2, 4-D Amine And Mcpa Amine, James William Lammers. Lammers
Electronic Theses and Dissertations
Weed control in oats {Avena sativa L.) is principally achieved by post emergence herbicide applications. The two most widely used being the amine salts of 2,4-D and MCPA. Both 2,4-D (2,4-dichlorophenoxy) acetic acid and MCPA (4-chloro-0-tolyl) oxy acetic acid belong to a class of compounds known as the phenoxys. Other compounds in this class include 2,4,5-T (214,5-trichlorophenoxy) acetic acid, 2,4-DB 4- (2,4-dichlorophenoxy) butyric acid, and the ester formulations of 2,4-D and MCPA. The phenoxys are auxin type growth regulators. The cause of death from phenoxy compounds is believed to be the physiological disfunction of the plant brought about by abnormal …
Measurement Of Sprinkler Evaporation Loss, Kris Daniel Kohl
Measurement Of Sprinkler Evaporation Loss, Kris Daniel Kohl
Electronic Theses and Dissertations
Evaporation loss from low pressure spray type sprinklers was investigated with the use of the potassium ion as a chemical tracer in the irrigation water. The experimental set-up consisted of a 121 m line source with low pressure sprinklers attached to 4 m risers simulating the outer span of a center pivot irrigation machine. Potassium ion concentrations were monitored in surface applied water and in the atmosphere at a 60-m downwind location. Evaporation losses ranged from 0.5 to 1.4 % for a smooth spray plate sprinkler and from 0.36 to 0.58 % for a coarse serrated plate sprinkler. Measured evaporation …
Effects Of Gamma Irradiation On Chicken Fats, Myung Chul Kim
Effects Of Gamma Irradiation On Chicken Fats, Myung Chul Kim
Electronic Theses and Dissertations
Food irradiation is a process which may provide an alternative to existing conventional food processes. It will not completely replace or substitute for other processes, but its unique qualities offer an additional processing option. A major difficulty with food irradiation is that it can potentially affect all food, and thus it touches on all food issues - from affecting the physical characteristics of food to labeling and consumer acceptance. Research directed toward the use of radiation for the preservation of foods began in 1945. Most of the studies have been government sponsored, at least partly because the 1985 food additives …
Special Supplemental Food Program For Women, Infants And Children : Attitudes Of South Dakota Participants, Jane Wilson Howard
Special Supplemental Food Program For Women, Infants And Children : Attitudes Of South Dakota Participants, Jane Wilson Howard
Electronic Theses and Dissertations
The purpose of this study was to document and analyze the attitudes of participants in the Special Supplemental Food Program for Women, Infants, and Children (WIC) in South Dakota. Demographic and attitudinal data were collected in December 1983 from a twelve percent random sample of the participants in the South Dakota WIC Program. Demographic and attitudinal information was obtained from a written attitude assessment instrument designed by the researcher. Seven hundred thirty-two instruments were sent out; 527 were completed and returned. All data was used in compiling response frequencies and statistical analysis. Analysis of variance and the Waller-Duncan t test …
Effects Of Prostaglandin F2a [Alpha] Dose On Synchronizing Ovine Estrus Using A Single Injection Regimen, Karl F. Hoppe
Effects Of Prostaglandin F2a [Alpha] Dose On Synchronizing Ovine Estrus Using A Single Injection Regimen, Karl F. Hoppe
Electronic Theses and Dissertations
The cyclic nature of the reproductive process for females has elicited the focus of reproductive specialists. Alterations in this cycle may lead to a more productive female and consequently a more productive livestock operation. These alterations could entail changing the time of the year conception can occur and the specific times during the week estrus may be displayed. For example, the domestic sheep, Ovis aries, has an estrous cycle length of approximately 17 d, whereas the European beef cow Bos Taurus has an estrous cycle of approximately 21 d. Variations within species lead to ranges for parameters which may place …
The Attitudes Of Judges, State's Attorneys, And Bar Attorneys Toward Allowing Television Cameras Into South Dakota Courtrooms, Terry L. Harris
The Attitudes Of Judges, State's Attorneys, And Bar Attorneys Toward Allowing Television Cameras Into South Dakota Courtrooms, Terry L. Harris
Electronic Theses and Dissertations
The disenchantment between the bar and the press on camera coverage of court proceedings began in 1935 after Bruno Hauptmann was tried, convicted, and executed for the kidnapping and murder of Charles Lindbergh's son. Thousands of people gathered in the streets to wait for news of the trial while reporters and cameramen with film and still picture cameras covered the proceedings inside the courtroom. The American Bar Association adopted canon 35 to keep radio and photographic equipment out of the courtroom in 1937. Canon 35 was amended in 1952 to ban television cameras from the courtroom. A majority of states …
A Cross Sectional Study Of Farmland Prices In South Dakota 1976-1984, Mohammad Z. Haque
A Cross Sectional Study Of Farmland Prices In South Dakota 1976-1984, Mohammad Z. Haque
Electronic Theses and Dissertations
U.S. land prices experienced a skyrocketing trend with the increase of commodity prices during World War I, collapsed with prices in 1921, remained steady in the 1920's, collapsed again with the farm prices in early 1930's, recovered slowly as farm prices increased in the late 30's and during World War II. In the lull between World War II and Korean War, farm prices and land values moved upward together. Consistent with the majority of regions in the United States, agricultural land prices in South Dakota also fluctuated during the first half of the twentieth century. South Dakota's average farmland values …
Liquid Crystal Display Interface Method, Seth Thomas Hansen
Liquid Crystal Display Interface Method, Seth Thomas Hansen
Electronic Theses and Dissertations
An interface between a 64X240 graphic liquid crystal display and an electronic voting system is developed. Interface hardware is based on the RCA 1802 eight-bit microprocessor. A method of utilizing a liquid crystal display with a limited viewing angle is presented. The display is positioned upside down, and characters are manipulated by the interface software to appear correct. Two-character fonts are available to the user. A 6X8 character font allows a maximum of pix lines with thirty characters per line to be displayed. Display size limits the 30X42 font to one line of seven characters. Run-length encoding is used to …
The Impact Of Flooding In Brookings County, South Dakota 1936-1985, Jan M. Griesenbrock
The Impact Of Flooding In Brookings County, South Dakota 1936-1985, Jan M. Griesenbrock
Electronic Theses and Dissertations
The objectives of this study are threefold. First, the flood hazard in Brookings County is analyzed by describing the importance of geology, topography, soils, weather and climate in terms of their respective impacts on the flood problem. Second, it develops a consolidated source of information on the flood history of the county from 1936 to 1985. This 50-year period includes years of drought, the flood of record in April 1969, and 1984 when at least three floods covered the county in one year. Finally, it identifies and assesses flood problems and those efforts that have been planned and implemented in …
The Effects Of Erosion And Desurfacing On Soil Properties And Productivity Of A Typic Haplustoll, Hero T. M. Gollany
The Effects Of Erosion And Desurfacing On Soil Properties And Productivity Of A Typic Haplustoll, Hero T. M. Gollany
Electronic Theses and Dissertations
Topsoil is a valuable resource to humankind. Current food production cannot be continued without this resource. Topsoil protection efforts must be continued or increased to meet future demands of mankind. Erosion reduces productivity but losses may not be detected until land is no longer suitable to produce crops economically, furthermore, other variables may mask the relationship. Technology advancement including improved seed varieties, modern fertilizer, and herbicide have doubled or tripled many North American crop yields in the past 50 years. The impact of topsoil removal is largely determined by subsoil properties as they affect root growth, soil available water and …
Enzyme Effect And Pesticide Use History In The Degradation Of Pesticides, Duane D. Flemmer
Enzyme Effect And Pesticide Use History In The Degradation Of Pesticides, Duane D. Flemmer
Electronic Theses and Dissertations
Soil is a heterogenous mixture of humus and minerals containing both immobilized enzymes and occluded microbial cells. Each of the organic and mineral fractions in soil has a special influence on enzyme activity. Soil enzyme activity results from accumulated enzymes and from the enzymatic activity of proliferating microorganisms. Microbial populations have developed to the point that short residual times have occurred for an applied pesticide. The target pest is not controlled and these soils are referred to as “problem" soils. The objective of this study was to ascertain the relationship between soil enzyme activity and pesticide persistence in soils with …
Role-Taking And Power In Health Care, Dana Charles De Witt
Role-Taking And Power In Health Care, Dana Charles De Witt
Electronic Theses and Dissertations
This study focuses on differential role-taking ability between physicians and nurses. Many sociologists note, subordinates are in positions of lower structural power than superordinates and therefore must employ other means of control. These other strategies of control come from a person’s own interpersonal skills. This source of power is referred to as personal influence and is considered by Franks, Thomas et. al. Wrong, to be more situated in nature than structural power which is viewed as having a more enduring quality. Most persons, regardless of the power of the position they hold.in a given social context, must interact and role-take …