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Chemical Survey Of Selected South Dakota Lake Sediments, Alan Ross Swanson Jan 1973

Chemical Survey Of Selected South Dakota Lake Sediments, Alan Ross Swanson

Electronic Theses and Dissertations

Available phosphorus, organic carbon, and organic nitrogen were measured in bottom sediments of 16 lakes and ponds in northeast South Dakota. These lakes were glaciated, relatively shallow, and productive. Ranges of the surface sediments were: available phosphorus, 2 to 42 ppm; organic carbon, 0.94 to 5.34 percent; and organic nitrogen, 0.29 to 0.79 percent. Ranges of subsurface sediments were: available phosphorus, 2 to 39 ppm; organic carbon, 0.54 to 6.06 percent; organic nitrogen, 0.19 to 0.88 percent. Concentrations in most lakes varied little from top to bottom. Hard-bottomed lakes generally decreased in nutrient concentrations from sediment surface of subsurface. Lower …

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Origin And Transport Of Nutrients In The Upper Big Sioux River, South Dakota, Charles William Thompson Jan 1973

Origin And Transport Of Nutrients In The Upper Big Sioux River, South Dakota, Charles William Thompson

Electronic Theses and Dissertations

The upper Big Sioux River Basin, in northeastern South Dakota, was studied to determine the origin and transport of nutrients in the Big Sioux River. The area was divided into three segments. Two of the segments, the Big Sioux River and Willow Creek Basins, were primarily agricultural drainage areas, and one segment was the city of Watertown. Sampling stations were selected to facilitate the determination of nutrient inputs to the river from each of these segments and to determine the nutrient load in the river leaving the study area. Nutrients studied included total orthophosphate and the particulate and dissolved fractions …

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Nutrient Sources And Transport In The Central Region Of The Big Sioux River, South Dakota, Marvin E. Hora Jan 1973

Nutrient Sources And Transport In The Central Region Of The Big Sioux River, South Dakota, Marvin E. Hora

Electronic Theses and Dissertations

Concentration and flow of total phosphate (TP), total organic nitrogen (TON), and total organic carbon (TOC) were measured from November 9, 1971 to November 8, 1972 on the Big Sioux River, Six Mile-North Deer Creek, and Drainage M. The Big Sioux River transported 418,640 x 10 3 m3 of water, 776,880 kg TP, 599,590 kg TON, and 5,419,580 kg TOC during the study-year. Six Mile Creek transported 23,900 x 10 3 m 3 of water, 52,040 kg TP, 43,580 kg TON, and 327,860 kg of TOC. The transport of water and nutrients in Six Mile Creek per square kilometer of …

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The Effects Of Irrigation Application Depth On Corn Yield And Soil Moisture, Ronald L. Frankenstein Jan 1973

The Effects Of Irrigation Application Depth On Corn Yield And Soil Moisture, Ronald L. Frankenstein

Electronic Theses and Dissertations

Today's technology has done much to decrease irrigation labor demands with higher investments in equipment. A center pivot irrigation machine is an example of an irrigation method that allows control over the amount of' water applied with greatly reduced labor requirements. Irrigation with the center pivot system is often characterized by one to two inch irrigation application depths. These irrigation depths are often used to help avoid deep wheel tracks, to utilize the high initial infiltration rate of soil, and to minimize the variation in soil moisture in the soil profile. The general purpose of this study was to evaluate …

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Morphological Abnormalities Of The T¹²/T¹² Preimplantation Mouse Lethal As Revealed By Electron Microscopy, Curtis J. Hesla Jr. Jan 1973

Morphological Abnormalities Of The T¹²/T¹² Preimplantation Mouse Lethal As Revealed By Electron Microscopy, Curtis J. Hesla Jr.

Electronic Theses and Dissertations

The study of spontaneous or induced genetic anomalies has been of considerable benefit to cellular and molecular biology. By observing abnormal developmental processes resulting from genetic mutations, we can come to a better understanding of normal mechanism of gene action. The complex I-locus of autosome IX of the house mouse, Mus musculus, represents an outstanding developmental and genetic system to investigate the control of early mammalian differentiation. This locus, which apparently extends over some length of chromosome IX, appears to participate in functions concerned with early developmental. processes in the embryo. Many lethal, as well as viable all alleles, are …

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Ritual Patterns In Shakespeare's Comedies, Margaret M. Eno Jan 1973

Ritual Patterns In Shakespeare's Comedies, Margaret M. Eno

Electronic Theses and Dissertations

A student of literature becomes aware of an organizing design which unites all satiric, tragic, comic and romantic drama into one total picture. These four types of drama with their distinct moods dovetail into a total tale in much the same way that the four seasons create the overall picture of the year's story. The moods of the four seasons of the year show a close correspondence to the major literary moods. An archetypal study of Comedy is especially rewarding because one may identify within the comic structure aspects of the other types of drama. Included in Comedy are the …

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Changes In Physical Fitness Of College Women As A Result Of Selected Conditioning Programs, Kathryn Johanna Hoff Jan 1973

Changes In Physical Fitness Of College Women As A Result Of Selected Conditioning Programs, Kathryn Johanna Hoff

Electronic Theses and Dissertations

It is well known that many American people are physically unfit and that this "unfitness” is due largely to the inactivity of the average American. College women have not been exempt from the trap of physical unfitness as excess fat deposits on the thighs, hips, waist and upper arms seem to be prevalent on the "Average College Miss." Unfortunately, there is no way to lose excess adipose tissue or inches either quickly or easily, even though large sums of money are spent annually on gimmick sand gadgets proposed to accomplish such purposes. Two primary variables that control fat accumulation are …

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Physiological Maturity Of Grain Sorghum In South Dakota, Leroy E. Johnke Jan 1973

Physiological Maturity Of Grain Sorghum In South Dakota, Leroy E. Johnke

Electronic Theses and Dissertations

South Dakota is located on the northern edge of the grain sorghum belt, a location which presents unique problems to sorghum seed producers in this area. The seed producer must consider many factors when t deciding where to locate a prospective seed field. High on this list of factors are weather risks such as drought, hail, high humidity, low temperature, and frost damage to see. Information on physiological maturity of a crop is very important to a seed producer. A common definition of this term is . . . that point at which maximum dry weight of grain or seed …

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Unsupervised Iterative Clustering In Pattern Recognition, G. K. Kaveriappa Jan 1973

Unsupervised Iterative Clustering In Pattern Recognition, G. K. Kaveriappa

Electronic Theses and Dissertations

In the fast growing field of remote sensing acquiring information through the use of cameras and related devices, such as radar and thermal infrared sensors, operated from aircraft and spacecraft - several useful developments are taking place. Several of these developments are centered around the remote sensing vehicle known as ERTS (the Earth Resources Technology Satellite), which is currently orbiting and photographing the earth at an altitude of approximately 570 miles. Experience has shown that even an expert, well versed in remote sensing, usually cannot derive adequate information from merely a single “frame” of remote sensing imagery covering the area …

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Evaluation Of Toxicity Of A Carbamate And An Organophosphate Insecticide To Adult And Larval Western Corn Rootworm, Diabrotica Virgifera Leconte, Mark D. Lyle Jan 1973

Evaluation Of Toxicity Of A Carbamate And An Organophosphate Insecticide To Adult And Larval Western Corn Rootworm, Diabrotica Virgifera Leconte, Mark D. Lyle

Electronic Theses and Dissertations

The western corn rootworm, Diabrotica virgifera LeCcnte, has caused great economic loss to the com producers of the Midwest. That economic loss is twofold: first, the loss of revenue due to insect damage and second, the cost of control measures. It has been estimated that in South Dakota in 1972, approximately $9,000,000 were lost to the insect. The rootworm complex in South Dakota is composed of the western and northern, D. longicomis, corn rootworms. In later years the western has become the primary pest in the complex. The resistance to chemicals by corn rootworms has compounded the problem of holding …

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Instrumentation For The Study Of Animal Responses To Ultrasonic Sound, Philip Y. L. Kwan Jan 1973

Instrumentation For The Study Of Animal Responses To Ultrasonic Sound, Philip Y. L. Kwan

Electronic Theses and Dissertations

In cooperation with the United States Department of Agriculture, Agricultural Research Service, the Electrical Engineering Department at South Dakota State University is testing the effects of ultrasound on coyotes. It is known that coyotes can hear high pitched tones of higher frequency than that of the human ear. The overall goal of this research is to investigate the feasibility of using ultrasound to repel predators, mainly the coyote, from livestock. It has also been found from preliminary experiments that there is a significant increase in the heart rate of the coyote during exposure to noise levels of 100 to 110 …

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Development And Evaluation Of A Learning Package For Teaching Home Economics Department Planning, La Vonne Dupraz Kurtz Jan 1973

Development And Evaluation Of A Learning Package For Teaching Home Economics Department Planning, La Vonne Dupraz Kurtz

Electronic Theses and Dissertations

The primary purpose of the present study was to develop a self-instructional learning package on the fundamentals of' home economics department planning for senior home economics education majors at South Dakota State University Department planning was a suitable area in which to develop a learning package since there were few available resources for teacher educators and students to use when studying the concept of new department planning. This is an area in which teachers, should be knowledgeable as they are expected to help in the planning of new departments and remodeling of departments already in use. This study was limited …

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An Investigation Of Behavior Change Of Student Housing Staff At South Dakota State University For Academic Year 1971-72, Ronald J. Nielson Jan 1973

An Investigation Of Behavior Change Of Student Housing Staff At South Dakota State University For Academic Year 1971-72, Ronald J. Nielson

Electronic Theses and Dissertations

Since the advent of residence halls on college campuses, student personnel administrators have sought, by various means, to provide student assistants for these halls. The process for selecting student assistants has been characterized by change; i.e., no selection process has been considered to be final or complete in providing the best possible staff of student assistants. Research has been focused on how.to make the selection of student assistants a more valid and relevant process. The author assumed that the primary resource in the selection process was the student assistant. This assumption was based upon the fact that the student assistant …

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On Acoustic Measurement Of Soil Moisture, Douglas George Knabe Jan 1973

On Acoustic Measurement Of Soil Moisture, Douglas George Knabe

Electronic Theses and Dissertations

The subject of this thesis is the use of sound transmission parameters as indicators of soil moisture. Sound waves have long been used in subsurface explorations. Shepard (1935) describes a seismic method. At the present time there are several seismic methods in use. In general, measurement is based on the fact that the velocity of shock waves is a function of the density and of other properties of the material through which they travel. A change in the significant properties of the material in the path of the sound waves causes reflections and velocity changes. These changes in the sound …

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The Prevention Of Blisters On The Hands Of Horizontal Bar Gymnasts By The Use Of Cryotherapy, Randall Ray Nelson Jan 1973

The Prevention Of Blisters On The Hands Of Horizontal Bar Gymnasts By The Use Of Cryotherapy, Randall Ray Nelson

Electronic Theses and Dissertations

A conditioned pair of hands, free of blisters or tears, is vital to a gymnast's performance. If the hands should become blistered or torn, the gymnast will not be able to work to capacity. One of the six events in men's gymnastics is performing on the horizontal bar. Work on the bar wears heavily on the gymnast' s hands, considerably more so than any or all of the other apparatus combined. Many different preventive measures have been tried in an attempt to prevent blisters from forming. Such measures include the use of chalk, wicks, and tape. Their use has been …

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Solodized Solonetz Soil Core Model Studies Of Reclamation, Dennis G. Shannon Jan 1973

Solodized Solonetz Soil Core Model Studies Of Reclamation, Dennis G. Shannon

Electronic Theses and Dissertations

Soil management becomes increasingly important with the advent of irrigation agriculture in semi-arid regions. The limitations of soils and also water must be recognized or major environmental damage can occur when soils are not managed properly. Soils and water may have limitations so severe that irrigation agriculture is not possible because of the salts or sodium already in the soils or which may be derived from the water used. In South Dakota, large areas of land will require special soil management if proposed irrigation projects are to be succcssfu1. As much as 57% of the land in South Dakota (excluding …

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Design And Evaluation Of Air Distribution Systems In Agricultural Tractor Cabs For Summer Environmental Control, Michael Albert Vig Jan 1973

Design And Evaluation Of Air Distribution Systems In Agricultural Tractor Cabs For Summer Environmental Control, Michael Albert Vig

Electronic Theses and Dissertations

When agriculture was at the stage of horse drawn implements, man used an umbrella or some other form of sunshade to reduce radiation from the sun. An umbrella sufficed as an attempt at environmental control. Farmers worked long hours and little concern was given to personal comfort. Environmental control measures for farmers improved little with the introduction of the farm tractor. The farmer then moved the umbrella from the horse drawn implement to a mount over the tractor seat. Later tractors were developed with windshields or simply windbreaks. These offered protection only when going against the wind and dust. For …

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The Primary Structure Of Nifungin, Marvin Lee Withrow Jan 1973

The Primary Structure Of Nifungin, Marvin Lee Withrow

Electronic Theses and Dissertations

The primary structure of the antifungal peptide nifungin was studied. Amino acid analysis of nifungin before and after performic acid oxidation revealed 51 amino acids and the presence of an unidentified ninhydrin positive material. The unidentified material constituted approximately ten per cent of nifungin by weight. It contains nitrogen but, as reported by others (2), did not contain phosphate or reducing sugars. It was not hydrolyzed into smaller compounds by strong mineral acids. Carboxyl terminal analysis was conducted utilizing carboxy-peptidase A and B on both the oxidized and unoxidized nifungin. Tyrosine appeared to be released most rapidly followed by lysine, …

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A Survey Of The Insect Fauna Of Canada Thistle, Cirsium Arvense, In South Dakota; And Studies Relating To Biological Control By Ceutorhynchus Litura And Cassida Rubiginose, Lance Jerome Nearman Jan 1973

A Survey Of The Insect Fauna Of Canada Thistle, Cirsium Arvense, In South Dakota; And Studies Relating To Biological Control By Ceutorhynchus Litura And Cassida Rubiginose, Lance Jerome Nearman

Electronic Theses and Dissertations

A total of 121 indigenous insect taxa representing 9 orders, 64 families, 103 genera and 118 species was collected from Canada thistle (Compositae: Cirsium arvense (L.) Scop.) in South Dakota during 1970 through 1973. This survey identified the major phytophagous and entomophagous insect fauna associated with this noxious weed. The common phytophagous species observed feeding on thistle were all polyphagous and failed to control Canada thistle below the economic level. Field cage releases of adult Ceutorhynchus litura (F.) weevils were made on a thistle infested pasture site located in east central South Dakota during 1972-1973. Ninety-nine weevils were released in …

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The Unsteady Circulation Distribution In Rotors And Its Application To Noise Studies, Assem A. Fathy Jan 1973

The Unsteady Circulation Distribution In Rotors And Its Application To Noise Studies, Assem A. Fathy

Electronic Theses and Dissertations

A new method for the calculation of the unsteady circulation distribution in axial flow compressors was developed. The classical assumption of representing the rotor by a two-dimensional infinite cascade was eliminated. Instead the more realistic case of a radial cascade with blades of finite length was studied. The blades were assumed to be thin and only slightly cambered. The flow was assumed ·to be incompressible and inviscid and the secondary flow effects were neglected. The velocity induced at an arbitrary point of a reference blade due to the bound vortices on the blade under consideration and the other blades and …

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Processing Methods For Corn Grain Fed With Various Types, Sources And Levels Of Roughage To Cattle, Jerry Burkhardt Jan 1973

Processing Methods For Corn Grain Fed With Various Types, Sources And Levels Of Roughage To Cattle, Jerry Burkhardt

Electronic Theses and Dissertations

The research reported in this thesis involved experiments to determine the value of grain processed by various methods when fed various kinds and ratios of concentrate to roughage to feedlot beef animals of various ages and degree of fatness.

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Extraction Mechanism For The System : Erbium Nitrate-Water-Di-(2-Ethylhexyl) Phosphoric Acid In N-Heptane / By O. P. Soni, O. P. Soni Jan 1973

Extraction Mechanism For The System : Erbium Nitrate-Water-Di-(2-Ethylhexyl) Phosphoric Acid In N-Heptane / By O. P. Soni, O. P. Soni

Electronic Theses and Dissertations

No abstract provided.

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A Survey Of The Lunch Practices And Food Preferences Of High School Students Enrolled In The W. P. Daniel High School, New Albany, Mississippi / By Wilma Maude (Barkley) Reeves, Wilma Maude Reeves Jan 1973

A Survey Of The Lunch Practices And Food Preferences Of High School Students Enrolled In The W. P. Daniel High School, New Albany, Mississippi / By Wilma Maude (Barkley) Reeves, Wilma Maude Reeves

Electronic Theses and Dissertations

No abstract provided.

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Two-Phase Rocket Exhaust Impingement Study, Yuan Hsia Jan 1973

Two-Phase Rocket Exhaust Impingement Study, Yuan Hsia

Electronic Theses and Dissertations

No abstract provided.

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Listeners In The Ruins : The Protagonists In The Fiction Of Walker Percy, Teresa Ann Neaves Jan 1973

Listeners In The Ruins : The Protagonists In The Fiction Of Walker Percy, Teresa Ann Neaves

Electronic Theses and Dissertations

No abstract provided.

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The Element Of The Absurd In The Characters Of Edward Albee's Plays, Maria Clelia Medina Jan 1973

The Element Of The Absurd In The Characters Of Edward Albee's Plays, Maria Clelia Medina

Electronic Theses and Dissertations

No abstract provided.

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An Implantable Transmitter And A Complete Telemetry System For Body Temperature Measurement, Delbert D. Dais Jan 1973

An Implantable Transmitter And A Complete Telemetry System For Body Temperature Measurement, Delbert D. Dais

Electronic Theses and Dissertations

This manuscript includes the specification, design, operation and results of an implantable temperature sensing transmitter and a pulse frequency to voltage converter with a digital temperature readout. The research project also includes Frequency Modulated (FM) receiver to complete the temperature measuring telemetry system. What are telemetry and biotelemetry? According to the Modern Dictionary of Electronics, telemetry is "the science of sensing and monitoring of information at some remote location and transmitting the data to a convenient location to be read or recorded". Biotelemetry is "the technique of measuring or monitoring vital processes and transmitting data without wire to a point …

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Opinions Of Graduated Majors In Physical Education Concerning The Professional Preparation Program At Western State College, Brent Ralph Getchel Jan 1973

Opinions Of Graduated Majors In Physical Education Concerning The Professional Preparation Program At Western State College, Brent Ralph Getchel

Electronic Theses and Dissertations

University and college physical education directors, supervisors and public school department heads have the major task of preparing the new physical education teacher to face the realities of their chosen profession. As competency requirements for all teachers are becoming more evident every year, there is now an ·urgent need to look at the professional preparation programs in physical education in our colleges and universities. "Education plays an important part in any democratic society, and physical education must accept its role as a vital phase of education. In order to accomplish such a task, a sound and complete teacher preparation program …

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The Forms Of Language In The Plays Of Eugene Ionesco, Samuel Beckett, And Harold Pinter, Charles A. Haggerty Jan 1973

The Forms Of Language In The Plays Of Eugene Ionesco, Samuel Beckett, And Harold Pinter, Charles A. Haggerty

Electronic Theses and Dissertations

The Theatre of the Absurd is, to a large degree, a child of its times. Certainly the vision of life's futility is nothing new in literature, but certain features peculiar to our century have heightened our awareness of this futility and deepened our despair. Chief among these features, along with the triumph of the technological society which we have fashioned for ourselves, is the decline 0£ belief in traditional mythologies. "The decline of religion in modern times," William Barrett writes in Irrational Man. "means simply that-religion is no longer the uncontested center and ruler of man's life. Religion is no …

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An Economic Analysis Of Selected Beef Enterprise Systems For Southeast South Dakota, Darwin K. Johnson Jan 1973

An Economic Analysis Of Selected Beef Enterprise Systems For Southeast South Dakota, Darwin K. Johnson

Electronic Theses and Dissertations

The objectives of this study were: 1. To compare returns to labor and management from various farm organizations, when these organization s include beef cow systems, and cattle feeding operations under two price levels as well as cash grain enterprises. 2. To establish general and basic guidelines to assist farm operators in the study area in making decisions concerning changes in enterprise combination in attempting to maximize returns to labor and management. The procedure used to accomplish the objectives of this study was the application of linear programming analysis to a farm firm that was representative of the study area. …

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