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The Effect Of An Interval Running Program On Circulorespiratory Efficiency, Body Adipose Tissue, And Body Weight Of College Freshman Women, Nona Marie Stamp

Electronic Theses and Dissertations

The purpose of this investigation was to determine the effects of an interval running program on circulorespiratory efficiency, body adipose tissue, and body weight of college freshman women. Thirty students were selected randomly from volunteers from all of the freshmen women enrolled in the required freshman physical education program at South Dakota State University, equated by an oxygen consumption test, and placed in an experimental or control group. The experimental group participated in an interval running program over a six-week period. The workload consisted of running bouts on a graded treadmill with at specific interval rest period. The bouts increased …

Mist Irrigation For The Improvement Of The Climate For Cool Season Crops, Jerry Lee Spears

Electronic Theses and Dissertations

The application of mist to cauliflower and lettuce plants improved the quality of cauliflower heads. The mean temperature reduction in the mist plots was 4.8° F. Positive correlation of .76 was obtained between outside temperature and temperature under mist. By comparison of sample means of paired observations, differences were found to be significant at one percent level. The mist system was 2.5 feet above soil level. The lines were 120 feet long. The 3 lines on the west side of the plot were placed 3 feet apart. The next 7 lines were placed 6 feet apart. The last two lines …

Turbulent Velocity And Temperature In The Mixing Region Of Two Parallel Airstreams, Olin Thomas Sessions

Electronic Theses and Dissertations

Two basic types of fluid motion are known, laminar and turbulent flow. Laminar flow is characterized by essentially uniform flow of fluid particles and obedience to Newton’s Viscosity Law, ¬ƒ=µdu/dy. Many fluids have been found to have dynamic viscosities (µ) which are essentially constant and are considered to be properties of the fluid. The viscosities of gases can even be derived by the kinetic theory of gases and are found to be functions of the mean free path of individual molecules. Turbulent motion, on the other hand, can be described as a flow made up of macroscopic lumps of fluid …

The Effect Of Interval Running In Water On Leg Strength And Circulorespiratory Efficiency, Ronald J. Schlekeway

Electronic Theses and Dissertations

The purpose of this investigation was to determine the effects of progressive interval running in water on leg strength and circulatory efficiency. During the fall semester of the 1966-1967 school year, 20 junior males enrolled in the basic physical education program, at Washington Senior High School, Sioux Falls, South Dakota, were given parental permission to participate in this investigation. The subjects had participated in varsity athletics during the 1965-66 school year. The subjects were equated into two groups from results of an oxygen consumption test by the matched pairs method. The track pill box method was used to denote designation …

An Analysis Of The Production Output Difference Between An 11-Pica And A 15-Pica Line Width When Type Is Set By The Tts Method, Larry E. Rolufs

Electronic Theses and Dissertations

Since the early 1940’s there have been few experiments dealing directly with line width, and even fewer studies dealing with the effect of line width on productions output differences. However, there has been considerable speculation, and many hypotheses, about these differences. In a 1969 study, Leicht studied output differences on manually operated typesetting machines, using 11 picas and 15 picas.30 In the same year, Nuckols investigated comparative reading times using the same measures.31 These studies supported the hypotheses of the Louisville Courier-Journal that a 15-pica line width make for a more readable newspaper, and that type can be set manually …

Incomplete Neurological Development As A Root Of Reading Problems: A Classroom Teacher's Approach, Helen B. Prokes

Electronic Theses and Dissertations

Incomplete neurological development as a root of reading problems is a concept that could revolutionize our system of education. It could guide us to treating the “disease” rather than the symptoms. It could save us much “beating of the air” in our use of methods. It could modify our demands that learning take place in developmental infancy. At least, that is the theory of Dr. Carl H. Delacato2 and his associates in their Developmental Reading Program at Chestnut Hill Academy in Philadelphia, Pennsylvania. Their motivation stems from the conviction that “reading problems need not exist at all because they can …

Investigation Of Combine Header Losses During Grain Sorghum Harvest, Vern Earl Matter

Electronic Theses and Dissertations

The source and exact date of the introduction of grain sorghum into the United States has not been agreed upon, but it is generally agreed that it was sometime during the middle of the nineteenth century. The taller cane varieties were widely grown for syrup, sugar, and forage, but the strictly grain varieties were not accepted into the grain belt region until the 1950’s. It was at this time that the shorter varieties, those which could be harvested with a conventional combine, were sufficiently improved to compete with corn as a grain crop. Grain sorghum’s characteristics; being more resistant to …

Effects Of Continuous Running As Compared To Interval Running On Cardiorespiratory Efficiency Of Conditioned Freshman Wrestlers At South Dakota State University, Terry J. Linander

Electronic Theses and Dissertations

The purpose of this investigation was to determine whether a running program significantly influences the cardiorespiratory efficiency of conditioned wrestlers and to compare continuous running and interval running as methods of increasing the cardio-respiratory efficiency of conditioned wrestlers. Eighteen of the 19 members of the freshman wrestling squad at South Dakota State University, Spring Semester 1967, volunteered as subjects. The 18 subjects were divided into three equated groups, the results of a cardiorespiratory efficiency test being used as the equating factor. By employing the track pillbox method, the three equated groups were designated as the Interval Running Group (IR), and …

A Study Of Expansion And Contraction In A Pavement Consisting Of Prestressed Concrete Panels Interconnected In Place, George A. Jacoby

Electronic Theses and Dissertations

This thesis investigation is a study of the temperature expansion and contraction characteristics of a composite pavement constructed as a continuous pavement. The composite pavement consists of precast, prestressed concrete panels interconnected with grout keys and special panel connectors. A thin layer of asphaltic concrete is placed on the panels to provide a smooth riding surface and protection for the panels. This pavement was developed at South Dakota State University by Emil R. Hargett as a means of providing a more economical pavement for the high traffic volumes and heavy wheel loads that are now carried by our modern highways. …

Analysis Of Heat Transfer From Circular Or Square Fins, Yun-Seng Huang

Electronic Theses and Dissertations

It has been recognized that an increase in the rate of heat transfer to or from a solid body can be accomplished by extending surfaced called fins. There are a variety of fins such as rectilinear or parabolic fins protruding from a flat wall, or thin circular or rectangular fins on a tube. In all cases the heat transfer designers are interested in the optimum heat loss or gain. Considerable experimental work has been done in order to establish the empirical values of convective heat transfer coefficient to predict the amount of heat transfer from a particular fin configuration. The …

Nitrate--Urea Interrelationships In Sheep, Donald Wayne Hoar

Electronic Theses and Dissertations

Nitrates are absorbed from the soil by plants and serve as a source of nitrogen which is converted into protein and other nitrogen containing compounds. Plants usually contain relatively small amounts of nitrate because it is converted into other nitrogenous compounds rapidly after being absorbed. Under certain conditions some plants may accumulate fairly high concentrations of nitrate. While these high concentrations are not toxic to the plant, animals consuming them may sometimes show symptoms of nitrate toxicity. Nitrate is not very toxic, but it is readily converted into nitrite which causes toxicity. Nitrate is not very toxic, but it is …

The Effect Of A Selected Progressive Resistance Running Program On Circulorespiratory Efficiency, Power And Free Running Speed, Merl Arnold Hamak

Electronic Theses and Dissertations

The purpose of this investigation was to determine the effects of a selected progressive resistance running program on circulorespiratory efficiency, power, and free running speed of runners. A selected interval training program was employed to an accepted method of training. Forty-five mail, freshmen students at South Dakota State University were divided into two experimental groups and a control group. The subjects in the experimental groups participated in a six-week training program of either resistance running or interval training. All subjects were tested at the beginning of the investigation, immediately following completion of the training program, and again 10 days later. …

Porcine Body Composition As Influenced By Live Weight, Daniel Harold Gee

Electronic Theses and Dissertations

One of the controversial issues confronting the swine industry is the correct market weight for hogs. When the market prices look favorable for the future the producer tends to put additional weight on his hogs to obtain a greater total return in terms of dollars and cents. The marketing weight is often dependent up the availability and cost of feed. The area extension worker and nutritionist usually encourage the farmer to market his product at weights which maximize feed efficiency and meat production. Lighter hogs tend to produce faster gain with less feed and produce a leaner, trimmer carcass with …

A Subjective Evaluation Of Fundamental Locomotor Movement In Modern Dance Using A Five Point Rating Scale, Sandra Erickson Dvorak

Electronic Theses and Dissertations

The purpose of the study was to develop a test of fundamental locomotor movement for students enrolled in the modern dance classes at South Dakota State University. A five point rating scale was used to subjectively evaluate students who took the test. The writer devised a test of fundamental locomotor movement and conducted a pilot study. As a result of the first pilot study, certain changes were necessary for successful administration of the test. A second test was devised using only locomotor movement in pattern combinations. A second pilot study was conducted. As a result of the second pilot study, …

Stress Distribution In And Deflection Properties Of Tri-Plate Beams In The Plastic Range, Richard Clarkson Cline

Electronic Theses and Dissertations

Tri-plate beams combine versatility, economy, and strength in steel design. These beams have many applications which indicate increased efficiency and economy in long-span plate girder construction. Their structural advantages are almost unlimited. Tri-plate beams are fabricated by welding three different types of steel to form an I-section. Each flange and the web of the section is fabricated out a different yield strength steel. Because the flanges of a beam contribute most of its movement resistance, the use of high strength steel of in the flanges is desirable. However, in tri-plate beams, the tension flange consists of a higher strength steel …

A Method For Characterizing The Noise Produced By An Agricultural Tractor In Terms Of The Acoustic Power And Directivity, Tom Shepherd Chisholm

Electronic Theses and Dissertations

In agriculture, as in the civic, military and industrial areas, excessive noise is a problem that must be recognized. Tentative criteria have been established that specify the maximum noise levels that people can be exposed to for various time periods without receiving permanent hearing damage. In many cases, the noise produced at the operator’s location by agricultural machines is considerably above the maximum safe level for continuous daily exposure. The seriousness of the problem is further emphasized when it is realized that many young men in their teens are operating agricultural machines. The hearing damage that they receive will be …

An Analysis Of Per Capita Costs For Selected County Functions In South Dakota, Burdette V. Blumer

Electronic Theses and Dissertations

South Dakota had a greater number of local governments per 100,000 inhabitants than any other state in the United States in 1962.1 This fact suggests the existence of economic inefficiency in the operation of local governments in South Dakota. The people of South Dakota are demanding more services form their governments in South Dakota. The people of South Dakota are demanding more services from their governments. Governmental functions are becoming more expensive, partly because of providing more and higher quality services, and thus the taxes are increasing.2 Taxes are of constant concern, perhaps greater concern than usual, among the people …

A Study Of Dioxane-Water And Dioxane-Dioxane Interactions, Joel William Beckmann

Electronic Theses and Dissertations

The main objective of this study was to consider the problem of whether or not information about intermolecular interactions can be obtained from the examination of macroscopic properties of various systems. In this study it was chosen to investigate the intermolecular interactions of a liquid-liquid system. The liquid-liquid system, dioxane-water, was selected for two reasons. First, a considerable amount of work has been done on this particular systems so there is a large body of information with which to work and with which correlations can be made. Secondly, there is a large discrepancy among the interpretations of the results of …

Measurement Of Vertical And Horizontal Hydraulic Conductivities On An Undisturbed Soil Core, R. Kent Anderson

Electronic Theses and Dissertations

Permeability is the physical property of soil which enables it to pass or conduct air or water through is macropores. This should not be confused with the infiltration rate, a term expressing the rate at which water will enter the soil surface. Whereas the infiltration rate is influenced by the hydraulic slope, permeability is not (12, p. 153)*. A term which is often confused with permeability is hydraulic conductivity. Hydraulic conductivity is a velocity term, or (L/T), expressing the rate at which a fluid passes through the soil. The specific need for hydraulic conductivity and permeability measurements is to determine …

Fox-Prey Relationships In Eastern South Dakota, Robert L. Drieslein

Electronic Theses and Dissertations

Relationships between red foxes (Vulpes fulva) end their principal prey, particularly ring-necked pheasants (Phasianus colchicus), were studied on four units in eastern South Dakota from December 1964 to September 1966. Each unit was composed of a 100-square-mile "reduction area," on which fox populations were reduced, and a 100-square-mile "check area," on which fox populations were not reduced for the study. Indices to populations of foxes, pheasants, mice, eastern cottontails (Svlvilagus floridanus) and whitetail jackrabbits (Lepus townsendi) were obtained and used to evaluate food habits and the effect of predator reduction on prey populations. Four-hundred seventeen stomachs and 104 female reproductive …

Movement Of Forage Fishes In A South Dakota Stream, Thomas P. Felix

Electronic Theses and Dissertations

Movement patterns of Semotilus atromaculatus, Rhinichthvs atratulus, Campostoma anomalum and Catostomus commersoni were investigated in an eastern South Dakota stream for a period of one year. Electrofishing, fin clipping and a multiple census method were employed. Population structures were estimated for each species. Populations were considered unstable due to the occurrence of appreciable emigration and immigration between sampling periods. Differential size class mobility was established for all species. Species exhibited upstream movement tendencies during the summer and more random movement tendencies during the fall. Size classes of S.atromaculatus, R. atratulus, and C. anomalum showed differential upstream movement affinities. Considerable growth …

Comparison Of Two Cultures For Use In Preacidified Skimmilk For Cottage Cheese Manufacture, Daryl D. Boddicker

Electronic Theses and Dissertations

Curd formation in a cultured dairy product is brought about by the addition of a bacterial culture capable of producing lactic acid from lactose. The primary function of this culture is to produce sufficient lactic acid to cause coagulation of the caseinate system of skimmilk. A secondary function of the culture is the production of flavor compounds considered to be desirable in these products. The flavor compounds produced by the normal growth of citric acid fermenting organisms are water soluble, and are largely removed during washing of the Cottage cheese curd. Therefore, flavor compounds are normally added to the cheese …

The Influence Of Artificial Insemination In Three Midwestern States, Wendell Lee. Kucker

Electronic Theses and Dissertations

Increased productivity of dairy cattle depends in part upon genetic changes brought about by select ion. Because of the long generation interval and low reproductive rate, genetic improvement in dairy cattle is slow. For this reason, the accuracy and effectiveness of selection of sires is of utmost importance. Selection of sires plays a major role in the genetic improvement of dairy cattle since a sire can leave many more descendants than a female. Consequently, the use of outstanding males is important in the genetic advancement of the dairy cattle population in the upper mid west as well as throughout the …

Consumer Evaluation Of A New Low-Fat Spread-Type Dairy Product, Walter W. Wosje

Electronic Theses and Dissertations

For many years the dairy industry has been going through transitional period whereby many marketing and structural changes have resulted. Generally speaking, these changes have been advantageous to the dairy farmer. During the past years there has been a widespread and increasing interest in profitable means of utilization of dairy by-products. Because of their unique and high nutritional value, the most logical method of disposition of these by-products is, from the standpoint of the general welfare, in human food; generally this is also the most gainful method. The high nutritional value of these products also makes them valuable in feeding …

The Relationship Between Phosphorus And Zinc In Corn Plants, Edward J. Deibert

Electronic Theses and Dissertations

Zinc is one of the micronutrients required for plant growth. The plant requirement is very small in relation to the macronutrients: nitrogen, phosphorus and potassium. Even with a small plant requirement zinc deficiency is one of the more common micronutrient deficiencies. Zinc deficiency symptoms have been observed on a number of agricultural crops in many parts of the country including South Dakota. Zinc deficiency symptoms were first observed on corn in the south central part of the state in the late nineteen fifties. Since that time, deficiency symptoms have been observed with increasing frequency over several parts of the state. …

Cooperative Vocational Schools For South Dakota, Nicholas George Debilzan

Electronic Theses and Dissertations

The relative importance of this study is characterized by the following pertinent considerations: (1) the inability of communities to absorb unskilled labor, (2) the lack of salable skills of the high school graduates, (3) the prohibitive cost of providing vocational education on the necessary level to develop adequate skills, (4) the school drop-out problem, (5) the limited vocational education provided by the smaller school, (6) the industrial opportunities that can be provided by the larger cities of the state and (7) the need for a practical method of creating the necessary school entity. The economic make-up of the communities within …

The Effects Of Gamma-Irradiation On Seed Germination And Plant Stem Growth In Four Species Of Plants, George R. Halter

Electronic Theses and Dissertations

Today we are in the modern nuclear age of which several nations of the world have role. The United States is a forerunner in the world attempt to conquer the atom and its energy. The American concern in this field is primarily in three areas: (1) the harnessing of the nuclear energy for economic reasons, and (2) the magnitude of nuclear energy as a destructive threat, and (3) the resultant effects of ionizing radiation on biological organism. This study was pertinent to the third area listed above. It was concerned with the effect of gamma-irradiation on seed germination and its …

Genetic Parameters Among Production, Carcass Composition And Carcass Quality Traits Of Beef Cattle, Darrell A. Busch

Electronic Theses and Dissertations

There were 1,642,000 beef cows in South Dakota on_ January 1,1967, which was 14 percent higher than the 1961-65 average (South Dakota Crop and Livestock Reporting Service, 1967). These cows were valued at $307, 054, 000, a 27 percent increase over the 1961-65 average. There were 390, 000 head of cattle and calves on feed on January 1, 1967, a 33 percent increase over 1961 and a 22 percent increase over the 1961-65 average. The sale of cattle and calves has accounted for 44 percent of the cash farm income in South Dakota for the period 1958-65 and is the …

On The Nature Of Some Selenium Losses From Soils And Waters, Ghaleb Musa Abu-Erreish

Electronic Theses and Dissertations

Selenium is of interest to the animal nutritionists and to the biochemist from two standpoints. In some areas of the world it occurs in soils in excesses, and the plants growing in these soils contain levels of the element that are toxic to livestock that consume the plants. On the other hand, selenium appears to be essential to the well-being of certain animals, at least under some feeding regimens, and in a number of areas the soils produce feeds that are deficient in the element (48). In either case, an understanding of the cycling of selenium in nature is essential …

Inelastic Behavior Of Steel I-Beams With Hexagonal Web Cutouts, Teresa Chen Wang

Electronic Theses and Dissertations

In recent years plastic analysis has been widely used in structural design throughout the United States. It is based on the maximum load-carrying capacity of the structure. It offers a more realistic design approach than the conventional elastic methods, where the true factor of safety against ultimate strength can and does vary significantly from one structure to another.

The main objective of this study is to determine the maximum load-carrying capacity of steel I-beams with hexagonal web cutouts. When the cutouts are arranged as shown in Figure 1-a, the beam presents an appearance exactly as does a castellated beam. A …