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Blood And Tissue Ammonium-Nitrogen Levels And Tissue Water In Pregnant Urea-Treated Rabbits, Myron Leon Lang
Blood And Tissue Ammonium-Nitrogen Levels And Tissue Water In Pregnant Urea-Treated Rabbits, Myron Leon Lang
Electronic Theses and Dissertations
Ammonia is produced by the normal cellular metabolic processes in mammals; however, ammonia can produce deleterious effects which are well known to many research fields. Ammonia when administered or absorbed at a slow rate may be tolerated in vast quantities by most living organisms. Relatively minute blood ammonium-nitrogen (BAN) levels are present because mammals have efficient systems for excreting ammonia or converting it to non-toxic end products. Normal BAN levels originate mainly from cellular metabolism and bacterial degradation of nitrogenous substrates in the alimentary tract lumen. Impaired detoxification processes (hepatic functional insufficiency and/or portal system shunts) promote elevated BAN levels …
Induced Multiple Ovulation In The Bovine, Franklin Lewis Schwartz
Induced Multiple Ovulation In The Bovine, Franklin Lewis Schwartz
Electronic Theses and Dissertations
To the cow-calf operator, the single most important factor affecting his economic livelihood is the number of calves produced and weaned for a given year. Unfortunately, due to low reproductive efficiency in comparison with other cattle traits, the possibility of having a calf crop of greater th9n 80 percent at weaning is not too common. The low heritability estimates that have been reported for reproductive performance indicate that little improvement can be expected through selection. To the animal scientist this problem can best be met by the development of a simple and reliable method of inducing for the most part, …
An Economic Model For Communities Considering The Sale Of Their Municipal Electric Systems, Gene R. Schwab
An Economic Model For Communities Considering The Sale Of Their Municipal Electric Systems, Gene R. Schwab
Electronic Theses and Dissertations
Today there are approximately 3, 500 electric utility systems in the Unite d States. These are owned by investors, cities, and consumers such as rural electric cooperatives. About 2, 000 of these electric systems are municipal (city-owned) and serve 13.5% of the consumers in the United States. The investor-owned utilities s total about 480 and serve about 79.0% of the customers. The remaining 1, 000 systems are rural cooperative s which serve 7. 5% of the consumers. This study is concerned with the 2, 000 electric systems that are municipally owned. Most of the systems are smaller than the investor-owned …
The Hall Method Of Estimating Healthy Classification As Compared To The Current Method Employed By The South Dakota High School Activities Association, Frank Joseph Kurtenbach
The Hall Method Of Estimating Healthy Classification As Compared To The Current Method Employed By The South Dakota High School Activities Association, Frank Joseph Kurtenbach
Electronic Theses and Dissertations
The purpose of this study was to utilize Hall's method of anthropometric measurements on a select sample of South Dakota wrestlers, and to compare the results of Hall's method with the current procedure of establishing minimum weights. The subjects included wrestlers competing in four of eight district tournaments during the 1969 State tournament series. Five body measurements were taken from each competitor. The measurements included were: (1) height; (2) chest width; (3) chest depth; (4) width at the illiac crests; (4) thigh circumference. These raw data were converted to predicted minimum weight by using a regression equation developed by Hall. …
Investigation Of The Dielectric Properties Of Grain At Microwave Frequencies, Arthur A. Kruse
Investigation Of The Dielectric Properties Of Grain At Microwave Frequencies, Arthur A. Kruse
Electronic Theses and Dissertations
The components of the complex dielectric constant of feed grains are obtained for the 8.5 to 12 gHz frequency range. The short-circuited wave guide method is employed to provide null-shift data for computer calculation of the first-order approximation of the real part of the complex dielectric constant under the simplifying assumption of negligible loss. Correction to this value is then made, where appreciable, by calculating the loss tangent from attenuation data independently obtained for the grains. The imaginary part of the complex dielectric constant then is obtained by multiplying the loss tangent by the real part. Curves of the real …
Isolation Of Keratinophilic Fungi From Soil And Wild Animals In South Dakota, William Urban Knudtson
Isolation Of Keratinophilic Fungi From Soil And Wild Animals In South Dakota, William Urban Knudtson
Electronic Theses and Dissertations
Very little is known of the ecology of keratinophilic fungi in animal populations and their habitats in South Dakota. Recent investigation of an outbreak of ringworm in blue foxes on a fur farm in South Dakota indicated that the source of infection may have been wild animals which had been captured and raised in the kennels previous to occupancy by the foxes. In recent years, a number of investigators have demonstrated that small and large mammals may carry keratinophilic fungi in their coats (13, 29-31, 52, 56-60, 63, 70, 77) and have postulated on the role of infected animals in …
A History Of Intercollegiate Basketball At South Dakota State University, Vernon L. Schoolmeester
A History Of Intercollegiate Basketball At South Dakota State University, Vernon L. Schoolmeester
Electronic Theses and Dissertations
The purpose of this study was ·to present a history of intercollegiate basketball at South Dakota State University showing the growth of and the changes in the basketball program. The study synthesizes sixty-four years, 1905-1969, of intercollegiate basketball at South Dakota State University. The study begins with Chapter I as the introduction. Chapter II covers the period from 1905 to 1918. Chapters II through XI pertain to the period from 1919 to 1969, during which eleven head coaches served. Chapter XII summarizes intercollegiate basketball at South Dakota State University. The investigation indicates that basketball competition was first started within the …
Gama Ray Spectroscopy Employing A Geranium Crystal Detector, John Francis Keane
Gama Ray Spectroscopy Employing A Geranium Crystal Detector, John Francis Keane
Electronic Theses and Dissertations
The Physics Department at South Dakota State University has recently been able to expand its facilities for beta and gamma ray spectroscopy. In the expansion two solid state detectors and a multichannel analyzer were acquired, along with a quantity of supporting electronics. In the first two chapters of this work much of the new spectroscopy equipment is examined in detail. The first chapter is devoted to the solid state detectors. A brief description of the operation and construction of the detectors is given, followed by a more detailed discussion of the capability of the lithium drifted germanium detector. The second …
Scheduling And Position Control Of Hospital Personnel, Larry Eugene Schmidt
Scheduling And Position Control Of Hospital Personnel, Larry Eugene Schmidt
Electronic Theses and Dissertations
A review of the literature indicates that previous studies have not provided an effective scheduling technique which will comply both with the restrictions of a set weekend-off sequence and of modern employment laws. Most hospitals are required to comply with the wage and hour laws of their state and, therefore, must schedule within this restriction. In a large number of cases, the hospital and the staff members have agreed upon some set weekend off sequence, thus placing an additional restriction on the scheduling procedure. The concept of position control is not mentioned in the literature. Preliminary investigation by this author …
Mare's Milk Composition As Related To "Foal Heat" Scours, Robert H. Johnston
Mare's Milk Composition As Related To "Foal Heat" Scours, Robert H. Johnston
Electronic Theses and Dissertations
A condition known as “foal heat" scours often develops in young foals during the mare's first estrum, which usually commences at nine days post-partum. Although death due to this affliction is rare, the results such as loss or hair around the anus, unthriftiness of the foals, foul odor in the stable area, and unsight1iness or the foals causes more than minor concern among horsemen. Severa1 causes for "foal heat" scours have been proposed by those familiar with the condition Among these theories are (1) changes in the composition of the milk, (2) overloading of the foal's digestive tract, (3) ingestion …
Cell-Wall Analyses Of Diphtheroids Isolated From Cattle And Swine, Everett E. Scheetz
Cell-Wall Analyses Of Diphtheroids Isolated From Cattle And Swine, Everett E. Scheetz
Electronic Theses and Dissertations
Biever, working in this laboratory, isolated numerous diphtheroidal organisms from cattle and swine sources. These anaerobic diptheroids were morphologically similar to organisms in the genera Corynebacterium and Actinomyces. King and Meyer found that isolates of anaerobic diptheroids from human sources were more closely related to the Corynebacterium based upon metabolic and serologic differentiation. Their work consisted of separating A. bovis from several isolates of anaerobic diptheroids on the basis of the catalase test, litmus milk reactions, and the fermentation of xylose, salicin, and raffinose. However, Grasser reported that the fermentation reactions are variable and cannot be used as definite criteria …
Heat Transfer By Numerical Solution For A Class Of Radiating Fins, Jia-Bo Hwang
Heat Transfer By Numerical Solution For A Class Of Radiating Fins, Jia-Bo Hwang
Electronic Theses and Dissertations
It has long been known that the heat transfer from a solid body to an ambient fluid can be increased by increasing the surface area of the solid body. Extended surfaces, or fins, are indispensable for compact heat exchangers. Geometrically, fins may be classified as straight fins, annular fins, and rod fins or spines. In most applications of fins, a fluid is circulating inside the fin-supporting pipe while the outside is exposed to another ambient fluid. The purpose of fin analysis is to find the temperature distribution in the fin and the heat transfer from the fin to the ambient …
The Changing Nature Of Family Values In Pearl Buck's House Of Earth, Sue Min Huang
The Changing Nature Of Family Values In Pearl Buck's House Of Earth, Sue Min Huang
Electronic Theses and Dissertations
Pearl Buck stayed in China from 1892 until 1931. During these years she experienced living with all classes of Chinese people, from the very poor peasantry to intellectual college students and learned professors in Nanking. During this time, the Chinese farming folk which consisted of four-fifths of the total Chinese population, also went through tremendous cultural and generational changes when industrialization and western ideas-were gradually introduced to the agricultural kingdom. The purpose of this thesis is to examine and evaluate Pearl Buck's demonstration of changing family values as manifested in Chinese farming folk in the early twentieth century to determine …
Some Field And Laboratory Observations On Morchella, Reed Sanderson
Some Field And Laboratory Observations On Morchella, Reed Sanderson
Electronic Theses and Dissertations
The morel, Morchella, of which there are several species, abounds throughout the United States. Several common names have been applied to this organism depending upon the area. Names include sponge, sponge on a stalk, honeycomb (because of its appearance), common more, delicious morel, hickory chicken (it is found among hickory leaves), and mushroom (the most common name in South Dakota). Although this organism ranks near the top of any fungus collector's list as a food, little is actually known or at least recorded of the environment associated with its appearance. The purpose of this study was to gather as much …
Penny-Shaped Crack In An Elastic-Plastic Solid, Mohammad Hossein Sadeghi
Penny-Shaped Crack In An Elastic-Plastic Solid, Mohammad Hossein Sadeghi
Electronic Theses and Dissertations
The field of fracture mechanics has been of great interest to scientists for many years. In 1776, Coulomb, a French scientist, proposed a certain criterion - for yielding. This idea was later developed by an Italian researcher Tresca. More recently, Weibull, a German· scientist, studied the statistical aspect of fracture. In 1913, Inglis derived the mathematical formulae for the stress distribution around an elliptical void, and has demonstrated that for a very narrow ellipse (say crack) the stress concentration factor becomes very large. In 1921, A.A. Griffith and, a British scientist, was led by this idea to propose his theory …
Investigation Of A New Analog-To-Digital Conversion Technique, Steven Kenneth Howell
Investigation Of A New Analog-To-Digital Conversion Technique, Steven Kenneth Howell
Electronic Theses and Dissertations
In the past decade, significant progress has been made in the technology of digital electronic systems. These are systems in which information is represented by numbers, usually in the form of groups of binary digits. These systems were developed for the purpose of processing information. Devices, which fit into this category, are digital computers and digital control systems. In order to utilize these devices, information must be taken from nature and presented. To the digital device in a form it can understand. Previously, man had to act as an encoder to link the information into the digital machine. Physical sensors …
Themes Of Isolation And Relationship In Selected Novels Of Frederick Manfred, Joan Hilmoe
Themes Of Isolation And Relationship In Selected Novels Of Frederick Manfred, Joan Hilmoe
Electronic Theses and Dissertations
The initial appeal of the novelist Frederick Manfred for this student of American literature grew from the fact that he is a contemporary writer and that he lives in the Midwest, more precisely, in Siouxland. At first his novels seemed primarily entertaining, but interest in his work developed with an awareness of a parallel between Manfred's concepts of the isolation of man and relationship to his fellow man and modern psychological ideas. Throughout the research and study of several novels, insights have crystallized to form a clearer idea of man's search for identity and the results of that search in …
Melengenstrol Acetate And Diethylstilbestrol For Feedlot Heifers, Donald C. Ridgway
Melengenstrol Acetate And Diethylstilbestrol For Feedlot Heifers, Donald C. Ridgway
Electronic Theses and Dissertations
Heifers comprise 30 to 40% or- the feed cattle slaughtered annually. The ratio of steers to heifers will vary depending on the numbers saved for breeding herds. Numbers needed for this purpose may vary somewhat depending on the rate or culling in cow herds and changes in the cattle population. It is apparent, however, that a large percentage of the cattle available for feedlots will be heifers. Heifers gain at a slower rate and utilize feed less efficiently than steers under similar feeding systems. Heifer carcasses have also been shown to contain more fat trim than steer carcasses when fed …
A Time-Lapse Photography Study Of Free Stall Housing For Dairy Calves, James L. Reeves
A Time-Lapse Photography Study Of Free Stall Housing For Dairy Calves, James L. Reeves
Electronic Theses and Dissertations
As a principal means of herd replacement and expansion, the dairy calf is vital to the success of a dairy enterprise. High mortality rates among dairy calves, frequently as high as twenty percent, are very costly to the dairyman. Besides paying the high cost of losing a calf, the dairyman must find a replacement for the animal. Obtaining a herd animal from outside sources involves the risk that the replacement may be of lower quality than was the lost calf. Through careful selection of animals and a well-planned breeding program, a good farm manager will find raising his own replacement …
Cost Analysis Of Precast Prestressed Composite Pavement On U.S. Highway 14-Bypass, Wayne R. Haug
Cost Analysis Of Precast Prestressed Composite Pavement On U.S. Highway 14-Bypass, Wayne R. Haug
Electronic Theses and Dissertations
Because of the increase in heavy truck traffic, the need has developed for a stronger pavement to carry increasing wheel loads. These loads have usually resulted in thicker pavements which increases the cost. In some parts of the country the aggregates needed for pavements are scarce, making it necessary to transport the aggregates over long distances to the construction site. This longer haul increases the pavement cost and makes it necessary to investigate other methods of construction. A recent pavement development utilizes prestressed concrete. Prestressed concrete is composed of concrete prestressed with high strength steel. Concrete has a high compressive …
A Normative Study Of The Aahper Youth Fitness Test For Boys In Grades 7-10 In The State Of South Dakota, Glenn L. Rasmussen
A Normative Study Of The Aahper Youth Fitness Test For Boys In Grades 7-10 In The State Of South Dakota, Glenn L. Rasmussen
Electronic Theses and Dissertations
The purpose of this study was to establish norms for the AAHPER Youth Fitness Test for South Dakota boys in grades seven through ten and to compare their scores with those of national boys. One school was selected to represent each region or section of the South Dakota High School Activities' Association. The number selected from each school was in proportion to the school's enrollment. The AAHPER Youth Fitness Test was administered to one thousand South Dakota boys in grades seven through ten. Norms were established by computing every fifth percentile. The scores of South Dakota boys were compared with …
The Married High School Athlete In South Dakota:His Status And Information For Formulating A Fair Policy, Donald J. Hanson
The Married High School Athlete In South Dakota:His Status And Information For Formulating A Fair Policy, Donald J. Hanson
Electronic Theses and Dissertations
The purpose of this study was to determine the status of the married athlete as it pertains to his participation in interscholastic athletics on the secondary level in South Dakota and to offer meaningful information for formulating a fair policy concerning the married student-athlete. The survey method utilizing the questionnaire was employed in determining status. Ninety-nine percent of the administrators of secondary schools in South Dakota returned a questionnaire supplying information concerning the status of the married athlete in their respective schools. Results of the survey indicated that forty-three percent of the secondary schools in South Dakota have a policy …
The Effects Of Three Selected Weight Training Programs On Muscular Strength, Endurance Girth, And Cardiovascular Endurance, Leslie Curtis Hansen
The Effects Of Three Selected Weight Training Programs On Muscular Strength, Endurance Girth, And Cardiovascular Endurance, Leslie Curtis Hansen
Electronic Theses and Dissertations
The purpose of this investigation was to compare the effects of three different weight training programs on the development of muscular strength, muscular endurance, muscular girth, and cardiovascular endurance. Thirty freshman and varsity football players from the 1968 South Dakota State University football teams were used as subjects. The subjects were randomly divided into three different groups. One group trained using a modification of the DeLorme-Watkins method of training; the second group followed the traditional strength training method, while the third followed a circuit training program. The conditioning programs for the three groups consisted of ten exercises: bench press, military …
The Velocity Of A Pitched Baseball As Affected By Two Varying Training Programs, Anthony Joseph Porter
The Velocity Of A Pitched Baseball As Affected By Two Varying Training Programs, Anthony Joseph Porter
Electronic Theses and Dissertations
By employing a running program versus leg weight exercises, an analysis of the significance of the two training methods and their effect on the throwing endurance of the pitcher and on the velocity of the pitched ball was conducted in an attempt to assist in determining future coaching practices. The test measuring the velocity of the pitched ball and the test measuring leg strength were administered prior to and after the six-week training program. The data collected and recorded were statistically treated to determine the effects of the two types of training upon the throwing endurance of the pitcher and …
Structural Behavior Of High-Strength Bolted Connections With Varied Hole Diameters, William Thomas Haisch
Structural Behavior Of High-Strength Bolted Connections With Varied Hole Diameters, William Thomas Haisch
Electronic Theses and Dissertations
The main objective of this study was to determine the effect of an increased hole diameter on the structural behavior of high strength bolted connections. This study was limited to 3/4 inch diameter and 7/8 inch diameter bolts. Both butt and lap joints were considered in this investigation. Joints were made with a hole diameter 1/16 inch, 1/8 inch, 3/16 inch and l/4·inch greater than the nominal bolt diameter. Two bolt sizes were used along with varying plate thicknesses. To insure accurate results, each test was repeated three times.
An Analysis Of The Variable Factors Affecting Terminees Of The Boxelder Job Corps, Nemo, South Dakota, John Joseph Politi
An Analysis Of The Variable Factors Affecting Terminees Of The Boxelder Job Corps, Nemo, South Dakota, John Joseph Politi
Electronic Theses and Dissertations
Established by the Economic Opportunity Act of 1964, the Job Corps is a unique residential training program designed to provide disadvantaged men and women between the ages of 16 and 21 with the education, training, self-discipline and responsibility to become productive members of society. Since the opening of the. First Job Corps Center in January 1965, nearly 150,000 poverty youth have undergone Job Corps training. The Job. Corps attempts to provide education and training to allow these young adults the chance at a successful and productive life. The task before the Job Corps is not an easy one. Initially, the …
Piecewise-Linear Models For Mosfet Large-Signal Operation, Marlin H. Golnitz
Piecewise-Linear Models For Mosfet Large-Signal Operation, Marlin H. Golnitz
Electronic Theses and Dissertations
The large signal behavior of electronic devices has long been a topic of concern to the electronic engineer. This. Large signal behavior is an important characteristic of digital, pulse and switching circuits as used in computers and data processing systems. During the past few years, considerable attention has been given to the derivation of computer models for the solid state devices used in digital systems. By using such models, one can predict the behavior of a device under given conditions without relying exclusively upon experimental observation A device which is currently corning into its own is the metal oxide semiconductor …
The Effects Of Cryotherapy On The Velocity Of A Pitched Baseball, John D. Pierson
The Effects Of Cryotherapy On The Velocity Of A Pitched Baseball, John D. Pierson
Electronic Theses and Dissertations
The purpose of this study was to investigate the feasibility of a cold water application of 35 ° to 40°F, between innings, and its effect on the pitching arm through the course of a designated series of throws. Eight male students from the basic physical education classes at South Dakota State University participated in the study conducted over a period of three weeks. All of the individuals involved were administered each of three selected treatments. The data in this study were analyzed in three ways. A t ratio was used to interpret the changes in the average velocity of the …
Computer Evaluation Of Error-Correcting Codes For Pcm Telemetry, William W. Goddard
Computer Evaluation Of Error-Correcting Codes For Pcm Telemetry, William W. Goddard
Electronic Theses and Dissertations
Communication in a broad sense is simply transferring information of some sort from one point to another, usually by means of electrical signals. The sender and the receiver of the information may be either man or machine. If the information to be transferred is in a numerical form, the system is called a Digital Data Communication System. This type of system is usually employed in machine-to-machine communication, but may be applied to transferring other types of information by first converting that information into a numerical (digital) form. In today's typical Digital Data Communications, the numerical data is converted to binary …
A Mathematical Model Of A River Basin, Leroy John Petrick
A Mathematical Model Of A River Basin, Leroy John Petrick
Electronic Theses and Dissertations
The utilization of our rivers by population and industrial activities has increased dramatically in recent years. Since the number of rivers available has remained constant, a need has been created to optimize the utilization. In order to optimize, the effects on the physical properties of the river caused by changes in utilization must be determined. Quantity, the amount of water flowing in the river, along with quality, the value of the water for further utilization, are physical properties of the river. Variations in these two properties measure the effects caused by changes in the utilization. The utilization within a basin …