Digital Commons Network^™

Population Dynamics Of The Mourning Dove In South Dakota, Leslie A. Rice

Electronic Theses and Dissertations

Mourning dove bandings in South Dakota totaled 44,842 from 1917 through 1970. Adult bandings totaled 44.4 percent of all bandings while immatures, juveniles, locals, and unknown age were 41.3, 0.8, 12.8, and 0.7 percent, respectively. Recoveries totaled 2.8 percent of the banded population, 2.5 percent from hunting and 0.5 percent from non-hunting. Annual mortality estimates of local (nestling) bandings from 1956-61 were between 54.4 and 64.5 percent. Subsequent adult mortality from local bandings was between 51.0 and 52.4 percent. Mean annuals mortality estimates of flying doves banded from 1964-69 were calculated using composite dynamic, composite time-specific, relative recovery rate, a …

Macroscopic Benthos Populations And Taxonomy Of The Family Chironomidae In Lake Poinsett, South Dakota, Stephen B. Smith

Electronic Theses and Dissertations

Benthos samples were collected in Lake Poinsett, a highly eutrophic eastern South Dakota lake, from March 1970 through February 1971. The lake bottom was divided into three substrate types (sand, sand-sapropel mixture and sapropel) and the percent of each substrate type was calculated. Nineteen macroscopic genera were taken from ten sampling stations located throughout the lake. Descriptions are presented for organisms in this group. Diversity of organisms was greatest in the sand substrates, in that all 19 genera were collected. Chironomus spp. (Chironomus plomosus, Chironomus attenuates and six unidentified species) was the most abundant group of organisms and occurred most …

Rapeseed, Sunflower And Soybean Meals As Protein Supplements In Dairy Calf Starters, Paul E. Stake

Electronic Theses and Dissertations

The world need for protein is ever-increasing causing the feed industry to seek new sources of protein supplementation for livestock (17). Urea and other non-protein-nitrogen (NPN) source have received much attention in the past twenty years as protein substitutes, but their use is limited to years as protein substitutes, but their use is limited to functional ruminant animals. Pre-ruminant calves, unable to utilize NPN, need natural protein in their diets. Soybean meal (SBN) has been the common protein supplement in many dry calf meals in the Midwest for several years and has been proven to be an acceptable source of …

Various Forms Of Dehydrated Alfalfa In High-Concentrate Cattle Finishing Diets, Jerry D. Burkhardt

Electronic Theses and Dissertations

Even though growing and finishing beef cattle have been fed satisfactorily on all-concentrate diets, in many instances weight gains have been improved and management problems reduced by including some conventional form of roughage in the diet. The most efficient level of roughage will likely be a variable factor depending upon a number of things including weight and condition of the cattle and. nature of the roughages and concentrates. It is a well-established fact that .as the energy content of the diet increases the rate of gain increases and the feed required per unit of gain decreases. In addition to rate …

The Present Status Of Intramural Sports Programs For Boys In South Dakota High Schools, Thomas Lee Farrell

Electronic Theses and Dissertations

The problem under consideration in this study was to determine the number of South Dakota high schools that are providing intramural sports programs for their male and female students, and to determine the present status of intramural sports programs for boys in South Dakota's public and private high schools.

The Effects Of Erythropoietin, Dibenzyline, And Iron Dextran On The Hemogram Of Doe And Fetal Rabbits, Eugene Austin Gardner

Electronic Theses and Dissertations

The iron deficiency anemia found particularly in swine has a high incidence in the newborn. The nutrition of the sow inversely affects progression of the anemia. Newborn nutritional status, also, inversely augments the anemic condition. The anemia does not become apparent in the newborn until a few days following parturition. There is a drastic decrease in iron availability with succeeding decreases in normal hemoglobin formation and mature red blood cell formation. An important factor along with these conditions is susceptibility to disease leading to death. A gradual return to normal follows if the newborn survives the anemic period. This condition …

Nonlinear System Identification Using An Analog Technique, G. N. Govindan

Electronic Theses and Dissertations

The prime purpose of this thesis project is to investigate and to implement Kohr's method. Kohr's method of identification was selected for study mainly because of the easy accessibility of the analog computer, in addition to the other advantages mentioned above. In this thesis the method of Kohr is shown to apply to the identification of single-valued nonlinearities. However, it is also shown in the work to follow that the method does not apply, in general, to double-valued nonlinearities. Further, an extension of this method is developed herein which enables the determination of system order. A number of examples illustrating …

A Multi-Item Inventory Model, Ramakrishnan Krishnan

Electronic Theses and Dissertations

During the last fifteen years there has been a rapid growth of interest in scientific inventory control; the use of mathematical models to obtain rules for operating inventory systems. The subject has attracted such wide interest that today every serious student in the Industrial Engineering and related fields is expected to have had some experience with inventory models. Originally, the development of inventory models had practical applications as an immediate objective. Today, inventory models are being developed at many different levels, ranging from the direct application in practical problems to the development of abstract mathematical models. The earliest derivation of …

Motivating Factors In The Purchase Of Specific Clothing Items By Selected Groups Of Men In South Dakota, Sandra Schroder Moore

Electronic Theses and Dissertations

The purpose of this study was to investigate the motivating factors that influenced a selected group of men in South Dakota in purchase of clothing. The returns were grouped so that buying practices of men in East River and West River were compared, and buying practices of men from urban and rural areas were compared. Changes in men's clothing have begun to change at an accelerating rate compared with relatively slow changes that took place in the past. These changes have come in many forms such as new colors, new styles, and new fabrics. Because of these innovations in men's …

An Investigation Of The Extended Three-Dimensional Transportation Model, James Ronald Roskens

Electronic Theses and Dissertations

The three major costs generally associated with the process of transforming raw materials into marketable merchandise area

1. Raw material costs

2. Production costs

3. Distribution costs

Raw materials are the materials necessary to produce the finished product. They are the tangible substance from which the finished product is made. As such they may be purchased or shipped in from another plant. Raw material costs are the costs associated with obtaining these materials. The production cost is the cost associated with the conversion of the raw material into a finished product. It includes the cost of labor; the storage cost …

Test Of Various Insecticides As Systemics In Wheat Upon The Army Cutworm, Lavarre Delancy Uhlken

Electronic Theses and Dissertations

There are many species of cutworms. They vary greatly in population from year to year. The army cutworm, Euxoa auxiliaris (Grote), is very common from the Rockies east to the Great Plains and is occasionally a severe pest to wheat in these areas. Daniels (1964) found that normally, army cutworms feed largely on the upper portions of plants. Where large populations of this cutworm are present, plants are consumed to the ground. After consuming nearly all the vegetation in one areas, cutworms mill migrate by the thousands to adjacent fields. The army cutworm has 1 generation a year, wintering as …

The Relationship Of Porcine Muscle Fiber Size And Number To Management, Meatiness And Quality, Ronald J. Smith

Electronic Theses and Dissertations

For many years animal scientists have been striving to find the “foolproof” method foreseeing the desired carcass and consumer characteristics in live animals before they are slaughtered. As a result, several different live animal and carcass evaluation techniques have been developed and tested with slow but encouraging success in some areas. This “never-ending” search has been stimulated by the development of new and more sophisticated research tools and facilities as time advances. Increasing consumer demands for a muscular, trim, high quality meat product makes identification of these desired traits in the live animal and carcass necessary. Thus, the producer, feeder …

The History Of Intercollegiate Athletics At Northwestern College, Richard Wayne Vander Berg

Electronic Theses and Dissertations

Historical studies in athletics typically present which confronted coaches and athletic directors in the past. Such studies could be of importance in planning future programs of athletics. “The problem facing education today is the result of a long historical evolution. A vision of the future depends on the understanding and intelligent interpretation of the past.” The data collected and presented in this study should be of interest and value to individuals in the Health, Physical Education and Recreation Department, to Alumni, and to all people interested in the intercollegiate athletic program at Northwestern College, Orange City, Iowa. Members of the …

Application Of Remote Sensing Techniques To Monitoring Soil Moisture, Hal D. Werner

Electronic Theses and Dissertations

During the 1970 growing season, research was conducted to investigate the relationship between remote sensing imagery and soil moisture. Extensive aerial and ground truth data were collected and studied in order to evaluate the moisture supply and water use. The three hectare study site, located on the South Dakota State University James Valley Research and Extension Center, contained irrigated and non-irrigated sorghum and two fallow treatments. Results indicate that remote sensing is a feasible method for monitoring available soil moisture. Thirteen aerial missions were conducted between June 17 and October 5 at altitudes between 305 meters (1,000 feet) above ground …

The Influence Of Various Stress Conditions On Cholinesterase Levels Of Cattle Treated With An Organophosphorus Insecticide, Mitchell J. Wrich

Electronic Theses and Dissertations

Six-to 8-months-old Hereford heifers categorized as grubby or grub-free calves were used for this research. Forty calves were purchased in 1968 and also in 1969. The grubby calves were obtained from Highmore, South Dakota, an area where calves have a history of heavy grub infestations of both Hypoderma bovis (L.) and Hypoderma lineatum (de Villers). The grub-free calves were purchased in Fargo, North Dakota. Calves raised in this area seldom are infested with cattle grubs. Specified groups of calves were subjected to 30 minutes of continuous exercise or the withholding of feed and water for 24 hours prior to treatment …

An Econometric Model Of The South Dakota Economy, Kirk Wray Rubida

Electronic Theses and Dissertations

The purpose of this study is to adapt and develop a methodology of practical statewide macroeconomic analysis that is an alternative to the construction of a statewide input-output econometric model. The three objectives of this study are: 1. To present an annual stochastic econometric model of the South Dakota economy which is an adaptation of Daniel B. Suits’ 1962 annual stochastic econometric model of the United States economy; 2. To demonstrate the model’s use as an effective instrument by which state economic performance can be forecast; 3. To begin exploration of the model’s implications for the economic impact which selected …

Experimental Investigation Of Shock Boundary Layer Interaction For Two-Dimensional And Axisymmetric Flow, A. Shawki Zahran

Electronic Theses and Dissertations

A supersonic wind-tunnel has been constructed using an 8 inch by 10 inch single stage jet vacuum ejector with a capacity of handling 0.4 lb/sec air at 4 inches Hg absolute suction pressure. A Toepler Schlieren system with 10-inch diameter parabolic mirrors has been set up for flow pattern visualization. The same apparatus was developed to obtain multi-colored views of the flow pattern. That was accomplished by placing an equilateral prism in front of the light source located at the focal plane of the first parabolic mirror. A spectrum was thus produced at the focal plane of the second parabolic …

An Evaluation By Winter Wheat Of Phosphorus Carriers And The Effect Of Different Carriers On Three Phosphorus Availability Indices, Charles C. Biggar

Electronic Theses and Dissertations

Various types of phosphorus fertilizers are being commercially produced and used. Due to the different properties of these phosphate materials, their ability to supply phosphorus may differ among South Dakota soil environments. To provide data for phosphate users it is necessary to evaluate- the.se materials under varying soil and climatic conditions. Soil reaction is commonly used to differentiate conditions within the soil that are important to phosphorus utilization or fixation. Generally, where fixation is high the possibility of utilization of the added phosphorus is low. Acid soils are considered as having a high phosphorus fixing capacity. Alkaline soils are medium …

The Physiological Effects Of A Season Of Varsity Swimming Competition And Training On Selected Bodily Responses Of Swimmers, William George Cook

Electronic Theses and Dissertations

The purpose of this investigation was to study the physiological-effects of a season of varsity swimming competition and training on selected bodily responses of swimmers. The following hypothesis was investigated: Throughout the competitive swimming and training season, there is no significant trend that can be observed in the selected bodily responses of the varsity swimmers. 1. The eight male subjects for this study were chosen from members of the South Dakota State University varsity swimming team on the basis of individual participation during the previous season and on predicted participation in varsity competition. 2. Only these physiological parameters were measured: …

A Theoretical Investigation Of Shock Wave Stability In Sonic Inlets, Assem A. Fathy

Electronic Theses and Dissertations

A theoretical investigation of the shock wave stability applicable to "sonic" and supersonic inlets is presented. It is assumed that the boundary layer remains attached and that the principal sources of instability are the acoustic wave reflections from the shock wave and the face. The analysis is based on linearized one-dimensional flow theory and involves the solution of the wave equation with variable coefficients. The solution is obtained by series expansion. The results suggest that shock stability is mainly dependent on the shock strength and to a certain extent on the area distribution. For a given geometry, increasing the shock …

The Status Of Aquatics Programs In Selected Colleges And The Development Of An Aquatics Handbook, Dwight Lambert Hunter

Electronic Theses and Dissertations

The purpose of this study was to determine the status of aquatics programs of selected universities and colleges and to develop for South Dakota State University a handbook comprehensively covering the facets of an excellent aquatics program to be used in conjunction with the yet-to-be completed University Natatorium.

1. Data were obtained from aquatics directors and swimming coaches in-colleges and universities the approximate size of South Dakota State University in all fifty states.

2. Data were obtained from personal communication between the writer and swimming coaches throughout the United States.

3. The handbook developed was designed for use especially South …

Effects Of Selected Music Environments On Performance Of An Endurance Event, Carol Evonne Mccormick

Electronic Theses and Dissertations

The present study was conducted to objectively investigate the effects of music upon human performance during an endurance event. If a regulation of human performance can be established, music could be an invaluable aid for use during physical activity. The purpose of this study was to determine the effects of different types of music upon performance of an endurance event. The following two hypotheses were investigated:

1. There is no significant difference among the five treatments on distance performance of an endurance event.

2. There is no significant difference among the five treatments on heart rate before and during an …

The Historical Development Of Intercollegiate Track And Field Athletics At South Dakota State University, Russel Lee Schmeichel

Electronic Theses and Dissertations

Track and field teams at South Dakota State University have played an important part in the history of this institution and sources should be available describing past achievements on the athletic fields. As a history of intercollegiate track and field teams at South Dakota State University has never before been written, such a history would be an important step in compiling the histories of all the intercollegiate sports at South Dakota State University. Histories of football, basketball, and athletics in general at South Dakota State University have been compiled in the last few years. Therefore, the addition of a history …

A Study Of The Endogenous Electron Donors For Nitrogen Fixation By Cell-Free Extracts Of Klebsiella Pneumoniae M5al (Aerobacter Aerogenes M5al), Elisabeth Yi-Jan Wu

Electronic Theses and Dissertations

Biological nitrogen fixation, the mechanism of the enzymatic conversion of the inert nitrogen gas into amino acids in the cytoplasm of the microorganism has puzzled many scientists for decades. The recent discovery of some free-living nitrogen-fixing bacteria has encouraged the investigation of this mechanism. A big step taken in the rapid elucidation of this mechanism was the first reproducible cell-free nitrogen-fixing system from Clostridium pasteurianum successfully obtained by Carnahan et al. (9) in 1960. In the following decade, reproducible cell-free systems were demonstrated with the strict aerobe, Azotobacter vinelandii (4), facultative anaerobic Bacillus polymyxa (16) and Klebsiella pneumoniae (31) and …

The Chemistry Of Some Unusual Carbodiimides, Donald Melvin Plautz

Electronic Theses and Dissertations

Several N¹-alkyl-N²-(N,N-dialkylamino)carbodiimides, which were found to form dimeric species, were prepared, and the structure of the dimeric species determined. A study of the reaction chemistry of both the monomeric and dimeric carbodiimides led to the conclusion that dimerization occurred via a (π2s + π2a) ground-state, symmetry-allowed mechanism, and that thermal decomposition of the dimeric species occurred via a (π2s +-π2s) excited-state, symmetry-allowed mechanism. Although dialkylphosphoramidates have been shown to be useful intermediates in the preparation of unsaturated organic nitrogen compounds, N-acyl- and N-imino-dialkylphosphorohydrazidates were found to be too unstable, forming trialkylphosphates upon distillation, to be of …

Responses Of Rumen Microflora To Whey Products Added To High-Grain Low-Roughage Rations, Virgil L. Metzger

Electronic Theses and Dissertations

Many factors present in livestock feeds affect the numbers and types of protozoa and bacteria in the rumen. A small particle size of feed and a fast rate of passage of the feed through the ruminant decreases protozoal numbers. Full feeding of a concentrate ration and an acid pH in the rumen also tend to reduce protozoa numbers. Bacteria numbers tend to increase as the protozoa numbers decrease. Knowledge of rumen microflora population changes on different rations is lacking. It is known that restricted-roughage rations will generally cause lower protozoal numbers. Since whey is an available source of lactose and …

An Investigation Of The Effects Of Instantaneous Jockeying In Queues By Simulation, B. Radindranath

Electronic Theses and Dissertations

In today's world, waiting lines formed by people, machines and other types of units are commonplace. Queues form whenever the current demand for a service exceeds the current capacity to provide that service. In many cases, the interarrival times or service times are not constants, but involve distributions from which the values occur randomly.

A waiting line causes concern when there is an economic value associated with it. A waiting line may have a negative monetary value if units leave without service, or if units have costs as they wait. Idle service facilities may also have a negative monetary value …

Buckling Loads For Partially Embedded Piles, David Allen Wahlstrom

Electronic Theses and Dissertations

Piles are common structural elements used to transmit loads through weak or compressible surface soils to lower, more suitable soil strata. They are relatively small diameter shafts that are forced into the ground. Typical examples of pile utilization can be found at nearly any site where a major structure is being constructed. Many waterfront structures are built on partially embedded piles. In this case, the pile transfers the load of the structure to the lower soil strata and also serves as a column for the portion of the structure above the mud line. Many bridges and buildings are also supported …

The Influence Of Phenobarbital, Diphenylhydantoin, Trimethadione And Ethosuximide On Rat Liver Demethylase Activity, Gerald L. Wannarka

Electronic Theses and Dissertations

Of the many anti-epileptic agents available, the most commonly used compounds can be divided into four categories: the barbiturates and related drugs, the hydantoins, the oxazolidines and the succinimides. Because of the possibility of concurrent use of the compounds in the treatment of epilepsy, it would be advantageous to have some information concerning the effect that each group has individually on microsomal enzyme systems before therapy in instituted. This information would enable the clinician to more adequately predict drug response thus reducing dosage regimen adjusting time and also possibly reducing the incidence of adverse reactions or interactions. The effect of …

A Comparison Of Aspen And Pine Communities In The Northern Black Hills, Jeremiah J. Kranz

Electronic Theses and Dissertations

Three study areas, each containing an aspen (Populus tremuloides) community, a pine (Pinus ponderosa) community, and a mixed aspen-pine community, were studied during the summers of 1968, 1969, and 1970. Soil chemistry, plant chemistry, overstory density, understory production, and use by whitetail deer (Odocoileus virginianus) and cattle (Bos taurus) were determined for each community in each study. Pine and aspen communities of one study area were sampled for soil and plant chemistry. Soil phosphate and potassium levels were higher in the aspen community, while soil nitrates were higher in the pine community. Soil pH was similar to the two communities. …