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Partial Purification Of Heat Stable Enterotoxin Produced By Escherichia Coli Isolated From A Case Of Porcine Colibacillosis, Lee Ann Zochert Swanson Jan 1978

Partial Purification Of Heat Stable Enterotoxin Produced By Escherichia Coli Isolated From A Case Of Porcine Colibacillosis, Lee Ann Zochert Swanson

Electronic Theses and Dissertations

Colibacillosis (CB) in livestock is an economically important disease caused by the bacterium Escherichia coli. It is estimated that nearly one third of all baby pigs born in South Dakota die prior to weaning, and one fourth of these deaths is believed to be caused by CB (62). Similarly, it has been stated that 6 to 20% of calves born alive die from this disease (3). The term colibacillosis encompasses a group of diseases caused by E. coli in neonatal and weaned animals and humans (3). The several different types of CB are due to the differences in tissue localization …

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Reasons Why Cows Were Removed From The Sdsu Fairy Herd 1. Discriminant Analysis To Classify Cows With Or Without Reproductive Problems, Fred Tidemann Jan 1978

Reasons Why Cows Were Removed From The Sdsu Fairy Herd 1. Discriminant Analysis To Classify Cows With Or Without Reproductive Problems, Fred Tidemann

Electronic Theses and Dissertations

One of the keys to financial success in the dairy business is the ability of management to detect herd problems and correct them instead of culling cows. It is well known that the average productive life of the dairy cow is less than 4 yr, which is short compared with her potential life. Involuntary removal of cows causes economic loss directly as a result of its effect on yearly milk production, increased replacement cost, and indirectly because the potential selection differential is reduced with premature loss of high producing cows. The degree of culling is related to important economic considerations …

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The Practicality Of The Caldwell-Lawrence Diagrams For Predicting Lime-Softened Water Quality, James A. Arndt Jan 1978

The Practicality Of The Caldwell-Lawrence Diagrams For Predicting Lime-Softened Water Quality, James A. Arndt

Electronic Theses and Dissertations

The objectives of the investigation were: 1.) to determine the validity of the Caldwell-Lawrence diagrams in predicting alkalinity, calcium, and pH values at various levels of lime addition of the softening process. 2.) to determine the practical application of the diagram for plant operators in daily operations and design engineers for design calculations. Throughout the investigation, primary consideration was given to the practical aspects of water treatment in terms of water sampled, methodology, and.statistical analysis of test results. Construction of the Caldwell-Lawrence diagrams is based on chemical equilibrium between the carbonic species and calcium and magnesium in water. The theory …

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An Evaluation Of Protein Quality Of Kitt, Era And Rall Wheats By The Protein Efficiency Ratio Method, Lorna Jost Jan 1978

An Evaluation Of Protein Quality Of Kitt, Era And Rall Wheats By The Protein Efficiency Ratio Method, Lorna Jost

Electronic Theses and Dissertations

Studies were conducted to evaluate the nutritive value of three wheat cultivars produced at South Dakota State University. The three wheats were Kitt, Era and Rall. Crude protein analysis by the Kjeldahl method, amino acid content and a biological assay were conducted on all three wheat flours. Kjeldahl analysis yielded the following percentage proteins for Kitt, Era and Rall respectively; 18.1, 13.7, and 11.9. Lysine was the first limiting amino acid for rats in all three cultivars under investigation. Diets consisting of four protein levels of each wheat flour, four protein levels of casein control diet and one protein level …

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Listeria Monocytogenes In The Environment Of Livestock In South Dakota, James W. Neiles Jan 1978

Listeria Monocytogenes In The Environment Of Livestock In South Dakota, James W. Neiles

Electronic Theses and Dissertations

The purpose of this investigation is to study the incidence of Listeria monocytogenes in the environment of livestock in South Dakota. The data accumulated from these studies will provide information as to its natural habitat, mode of transmission and factors responsible for its incidence.

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The Effectiveness Of Two Types Of Visual Feedback On Performance Of Selected Uneven Parallel Bar Skills, Wesley David Mccloskey Jan 1978

The Effectiveness Of Two Types Of Visual Feedback On Performance Of Selected Uneven Parallel Bar Skills, Wesley David Mccloskey

Electronic Theses and Dissertations

The purpose of this study was to determine the effectiveness of two types of visual feedback on performance of selected uneven parallel bar skills. The subjects were 30 female college undergraduates enrolled in gymnastics and tumbling courses in the Fitness and Lifetime Activities Program (non-majors) or the Professional Skills Program (HPER majors) at South Dakota State University. Videotape replay feedback and teacher demonstration feedback were assigned to the two experimental groups with the third group serving as the control. Treatment for the experimental subjects consisted of videotape replay of skill performance for one group and teacher demonstration of the skill …

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Partial Characterization And Comparison Of Rhizobia From Astragalus Flexuosus Glycyrrhiza Lepidota, And Trifolium Spp., Elmer L. Eide Jan 1978

Partial Characterization And Comparison Of Rhizobia From Astragalus Flexuosus Glycyrrhiza Lepidota, And Trifolium Spp., Elmer L. Eide

Electronic Theses and Dissertations

Biological nitrogen fixation, a means of alleviating our increasing dependence on synthesized nitrogen fertilizers, is being studied with renewed interest. Production of nitrogen fertilizer requires large amounts of natural gas and other non-renewable energy sources, while the energy for biological nitrogen fixation is derived either directly or indirectly from photosynthesis. With only limited supplies of natural gas and an increasing population, and thus increasing demand for food, the advantages and even necessity of understanding and enhancing biological nitrogen is obvious. The nitrogenase enzyme complex which catalyzes the reduction of dinitrogen to ammonia is possessed by a limited number of species …

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Status And Reflections Of Augustana College Athletic Letterwinners, Mark O. Ekeland Jan 1978

Status And Reflections Of Augustana College Athletic Letterwinners, Mark O. Ekeland

Electronic Theses and Dissertations

The purpose of this study was to determine the present status of intercollegiate varsity athletic letterwinners [sic] of Augustana College, Sioux Falls, South Dakota. Of equal importance to this study were the opinions and attitudes of these athletes toward their varsity athletic experience at Augustana College. All varsity letterwinners [sic] included in records obtained from the Alumni and Athletic office files, 1920 to 1977, were sent a questionnaire. The data were analyzed through calculation of the total number of responses to each questionnaire item, as well as percentages, and averages. The questionnaire was mailed to 958 letterwinners [sic]. Five-hundred and …

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Ground Water Quality Variation At A Rapid Infiltration Land Treatment System Used For Tertiary Wastewater Treatment, Thomas W. Drake Jan 1978

Ground Water Quality Variation At A Rapid Infiltration Land Treatment System Used For Tertiary Wastewater Treatment, Thomas W. Drake

Electronic Theses and Dissertations

Based on the need to monitor nitrates because of the 1977 modifications, as well as upon the original EPA provisions for ground water monitoring, the studies reported in this thesis were initiated. The objectives of this investigation were as follows: 1. To monitor four wells within the influence of the rapid infiltration pilot units, as well as two control wells located beyond the influence of the units, to determine any substantial changes in ground water quality, which might be attributed to the rapid infiltration pilot unit operation; 2. To specifically examine the nitrogen data collected from the perforated drains in …

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Primary Productivity In Lake Cochrane, South Dakota, During And After Sediment-Control Dam Construction, Randall Francis Brich Jan 1978

Primary Productivity In Lake Cochrane, South Dakota, During And After Sediment-Control Dam Construction, Randall Francis Brich

Electronic Theses and Dissertations

Lake Cochrane was selected for this study because of its history of superior water transparency (Haertel 1972, 1976b). Significant amounts of silt and chemicals enter the lake with runoff at 3 locations (Haertel unpublished data). Restriction or impediment of runoff at these locations should result in improved water transparency (Haertel 1976b, Siegel 1975). Therefore, East Dakota Conservancy Sub-District and the South Dakota Department of Wildlife, Parks, and Forestry decided to impede runoff waters by means of 3 sediment-control dams incorporated into the perimeter road system of the lake and financed through a grant from the Environmental Protection Agency (Siegel 1975) …

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Cell Surface Changes During Early Mouse Development, James Thomas Rector Jan 1978

Cell Surface Changes During Early Mouse Development, James Thomas Rector

Electronic Theses and Dissertations

Objectives of this thesis were to further characterize cell surface properties of preimplantation mouse embryos. A study was conducted to determine latent effects of varying pulses of CB on early postimplantation mouse embryos by comparing their abilities to hatch, to attach and to sustain growth and differentiation of ICM and trophoblast tissue. CB treatment was begun at the 8-cell stage. Objectives of the studies involving Con A were to determine (1 ) whether agglutinability with Con A changes during compaction of 8-cell embryos, (2) if changes in numbers of binding sites parallel changes in agglutinability during preimplantation development, (3) whether …

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Pregnancy Diagnosis In The Ewe, Michael J. Trapp Jan 1978

Pregnancy Diagnosis In The Ewe, Michael J. Trapp

Electronic Theses and Dissertations

The ability to diagnose pregnancy accurately, rapidly and economically before the last six weeks of gestation in the ewe could be of real value as a sheep management tool. An efficient non-surgical pregnancy test could enable the producer to reduce feed costs, increase percent lamb crop and select for fertility. It is important to the health of the ewe and to the survival of the lamb that highly productive animals should be adequately fed. About 75% of the fetus' growth occurs during the last trimester of pregnancy. Therefore undernutrition of the ewe during this part of pregnancy leads to the …

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The Effect Of Anxiety On Shooting Proficiency Among College Women Basketball Players, Betty Kae Smith Jan 1978

The Effect Of Anxiety On Shooting Proficiency Among College Women Basketball Players, Betty Kae Smith

Electronic Theses and Dissertations

The primary purpose of this study was to investigate the relationship between state anxiety measures and shooting proficiency among women basketball players during game conditions and throughout a co11egiate basketball season. A secondary purpose was to determine the relationship between trait anxiety and state anxiety in addition to selected measures of shooting proficiency. Twelve members of the 1977-78 South Dakota State University Wome1's Basketball Team were assessed through the use of the following measures: (1) State Anxiety Inventory; (2) Sport Competition Anxiety Test; (3) pre-game heart rate; (4) game fie]d goal percentages; (5) game free throw percentages; (6) season field …

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Observations On Attachment And Spreading Of Zonaless Tw32/Tw32 (Brachyury Locus) And Control Icr Preimplantation Mouse Embryos, Ker Hwa Tung Jan 1978

Observations On Attachment And Spreading Of Zonaless Tw32/Tw32 (Brachyury Locus) And Control Icr Preimplantation Mouse Embryos, Ker Hwa Tung

Electronic Theses and Dissertations

The objective of the first part of this thesis is to test, in vitro, the adhesiveness of different stages of denuded preimplantation ICR mouse embryos for the substratum. In the second part, experiments are conducted to determine if there are differences in the attachment and spreading potential between tw32 homozygotes and normal embryos. Studies by Spiegelman (1976), Calarco and Brown (1968), Granholm and Johnson (1978), and others indicate that t12, tw32 and other lethal t alleles of the Brachyury or T-complex may affect cell surface properties. Thus, the objectives of this thesis include the acquisition of …

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Utilization Of Whole Aspen Tree Material As A Ruminant Feed Component, Mahendra Singh Jan 1978

Utilization Of Whole Aspen Tree Material As A Ruminant Feed Component, Mahendra Singh

Electronic Theses and Dissertations

A series of three separate experiments were conducted to determine the value of aspen tree (Populus tremuloides Michx.) as a ruminant feed component in growing, finishing and wintering rations. The entire tree, including the branches, leaves and bark, was fed to Hereford steers and commercial bred stock cows. In experiment 1, sixty steers were randomly allotted to six treatments of ten each. The six treatment rations were: 93% alfalfa as control, 12% aspen, 24% aspen, 36% aspen, 48% aspen and 48% aspen (with 4% sodium hydroxide). Soybean meal was included in aspen rations in a ratio of 40% soybean meal …

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The Effect Of Potassium Permanganate On The Removal Of Iron And Manganese From Ground Water, Mohammad Reza Farvardin Jan 1978

The Effect Of Potassium Permanganate On The Removal Of Iron And Manganese From Ground Water, Mohammad Reza Farvardin

Electronic Theses and Dissertations

For the past three years or so, a gradual migration of iron and manganese deposits has been observed in the water mains to the west of the East Water Treatment Plant of Brookings, South Dakota. These deposits have been gradually migrating further westward from the plant (8). Routine analyses of the treated water from the East Plant indicate that the iron and manganese levels are within the USPHS recommended limits (9). Consequently, conclusive evidence that this plant is the source of the problem does not exist. However, the analyses are normally conducted on samples collected shortly before backwashing the filters. …

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Mineralogy And Origin Of The Medicine Earth Sulfates In The Bucatunna Clay, Central Mississippi / By Dan Albert Thompson, Dan Albert Thompson Jan 1978

Mineralogy And Origin Of The Medicine Earth Sulfates In The Bucatunna Clay, Central Mississippi / By Dan Albert Thompson, Dan Albert Thompson

Electronic Theses and Dissertations

No abstract provided.

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The Effects Of Added Dry Whey On Yield And Acceptability Of Cheddar Cheese, James M. Wingfield Jan 1978

The Effects Of Added Dry Whey On Yield And Acceptability Of Cheddar Cheese, James M. Wingfield

Electronic Theses and Dissertations

Cheese production and sales are a major part of the U.S. dairy industry. Total hard cheese sales have increased 60% in the past 10 yr. Per capita consumption of cheese for the same period has risen from 2.81 kilograms (kg) to 4.03 kg for a 43% increase. In response to greater consumer demand the amount of milk utilized in cheese production has increased markedly during the past quarter century rising from the low of 10% of annual milk production in 1950 to 24% in 1976. This recent increase in cheese production emphasizes the importance of achieving maximum yields of cheese …

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Cinematographic Analysis Of Ball Trajectory During Free Throw Shooting Among Members Of The South Dakota State University Varsity Basketball Team, Herbert Harold Hofer Jr. Jan 1978

Cinematographic Analysis Of Ball Trajectory During Free Throw Shooting Among Members Of The South Dakota State University Varsity Basketball Team, Herbert Harold Hofer Jr.

Electronic Theses and Dissertations

Two-hundred and twenty successful and 143 unsuccessful free throw attempts, performed by 20 members of the South Dakota State University men's varsity basketball team, were photographed. Components of each trial which were analyzed included: (1) angle of release, (2) angle of entry, (3) height of the arch, (4) horizontal distance of the point of release from the highest point of the arch, (5) horizontal distance of the highest point of the arch to the front of the rim, and (6) height of the release. The mean and standard deviation values for each component were determined. A correlation analysis revealed that …

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Nutritional Adequacy Of The Diets Of Pregnant Cheyenne River Sioux, Kathy M. Dirks Jan 1978

Nutritional Adequacy Of The Diets Of Pregnant Cheyenne River Sioux, Kathy M. Dirks

Electronic Theses and Dissertations

A nutrition survey was conducted in which the diets of 79 pregnant Sioux Indian women living on the Cheyenne River Reservation in South Dakota were evaluated. A 24-hour recall was used and background information was collected by the researcher at Public Health Service prenatal clinics. The dietary intakes were evaluated according to Recommended Dietary Allowances (RDA). Diets were considered to be good if they provided all nutrients (protein, calcium, iron, vitamin A, thiamin, riboflavin, niacin, and ascorbic acid) and energy at or above recommended levels, and poor if they provided one or more nutrients below two-thirds the RDA. In accordance …

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Dietary Intake And Influence Of Nutrition Education For Selected Elderly In The Congregate Meals Program, Grace E. Anderson Jan 1978

Dietary Intake And Influence Of Nutrition Education For Selected Elderly In The Congregate Meals Program, Grace E. Anderson

Electronic Theses and Dissertations

Nationally, the elderly know fewer facts about nutrition as compared to younger people (41). Senior citizens have relatively poor diets and many are at nutritional risk. The Congregate Meals Program (CMP) provides one low-cost meal a day, five days a week for participants over 60 years of age and their spouses. The meal is to provide one-third of the RDA for the elderly. Based on these generalities, the questions investigated in three eastern South Dakota nutrition sites, with this research are: 1) What is the contribution of the CMP in the total dietary pattern of participants as recorded on a …

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Blood Gases And Certain Energy Metabolite Concentrations In Ammonia Intoxicated Sheep, George E. Romkema Jan 1978

Blood Gases And Certain Energy Metabolite Concentrations In Ammonia Intoxicated Sheep, George E. Romkema

Electronic Theses and Dissertations

The objectives of this study were to measure the changes occurring in certain blood parameters during acute ammonia intoxication. It was hoped that these changes would reflect and thereby provide insight into the effects of acute ammonia intoxication on metabolic processes. Blood pH, p02, and pC02 were measured in order to observe possible metabolic disturbances as reflected in the acid-base balance. Glucose was measured due to its importance as a basic energy source and metabolic intermediate. Volatile fatty acids were measured because they serve as an important energy source in ruminants. Non-esterified fatty acids and triglycerides were …

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A Study Of Residential Water Demand In And Around The Big Sioux River Basin, Jeffrey Platek Jan 1978

A Study Of Residential Water Demand In And Around The Big Sioux River Basin, Jeffrey Platek

Electronic Theses and Dissertations

The objectives of this study were to: (1) derive a demand function for residential water use for spring and summer quarters which would be representative of the average household within the Big Sioux River Basin and adjacent areas. The function was based on variables for price, number of persons per household, average annual income per capita, and average monthly rainfall; (2) determine significant variables which affect residential water consumption; and (3) derive price and income elasticities which will show the response in water consumption to changes in the price of water and per capita income.

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An Examination Of High School Photography Classes Offered As Part Of The Regular Curriculum In Iowa, Nebraska, North Dakota, South Dakota, And Wyoming, Jeff Stingley Jan 1978

An Examination Of High School Photography Classes Offered As Part Of The Regular Curriculum In Iowa, Nebraska, North Dakota, South Dakota, And Wyoming, Jeff Stingley

Electronic Theses and Dissertations

The purpose of this study was to examine schools within a five-state area that offer photography courses as part of the regular curriculum. Specific areas investigated were photography courses offered, length of classes, number of classroom sessions, name and author of textbooks, class sizes, hours of darkroom use, student laboratory fees, film processing procedures, types of school-owned cameras, photography budgets, teacher qualifications, photography contests, success of programs, equipment and cost to initiate a basic course, use of second -hand equipment, years courses were offered, classroom instruction materials , and class outlines. A two-page questionnaire was mailed to 60 high school …

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Effectiveness Of A Curriculum To Change Attitudes Of Adolescents Toward The Aged, Dorothy Jean Zuiderhof Jan 1978

Effectiveness Of A Curriculum To Change Attitudes Of Adolescents Toward The Aged, Dorothy Jean Zuiderhof

Electronic Theses and Dissertations

The primary purpose of the present study was to develop a two-week curriculum entitled Design for Dignity. The curriculum was to stimulate the student to think about aging and to improve his attitudes toward aging and the aged. More specifically, the instructional unit attempted to (1) provide accurate information about the aging process and sensitize the students to the needs of those who are presently elderly, and (2) help the students realize that they are patterning their own old age. The area of the older person was a suitable area in which to develop a curriculum as few available resources …

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An Assessment Of The Understanding Of Human Sexuality Concepts Among Undergraduates At South Dakota State University, Les C. Odegaard Jan 1978

An Assessment Of The Understanding Of Human Sexuality Concepts Among Undergraduates At South Dakota State University, Les C. Odegaard

Electronic Theses and Dissertations

The purpose of the study was to determine the level of understanding in the area of human sexuality among undergraduates at south Dakota State University.

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The Effects Of Shared Governance On Burnout And Job Satisfactionamong Hospital Nurses / By Robert B. Sterne, Robert B. Sterne Jan 1978

The Effects Of Shared Governance On Burnout And Job Satisfactionamong Hospital Nurses / By Robert B. Sterne, Robert B. Sterne

Electronic Theses and Dissertations

No abstract provided.

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The Image Of Old People In Prescription Drug Ads, Margaret Day Allen Jan 1978

The Image Of Old People In Prescription Drug Ads, Margaret Day Allen

Electronic Theses and Dissertations

No abstract provided.

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Changes In Traditional Community Pharmacist Work Patterns Following Computerization, Alan Bert Mckay Jan 1978

Changes In Traditional Community Pharmacist Work Patterns Following Computerization, Alan Bert Mckay

Electronic Theses and Dissertations

No abstract provided.

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A Survey Of Women's Attitudes On The Portrayal Of Women In Television Commercials, Margaret Euretha Anderson Jan 1978

A Survey Of Women's Attitudes On The Portrayal Of Women In Television Commercials, Margaret Euretha Anderson

Electronic Theses and Dissertations

No abstract provided.

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