Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Life Sciences (1953)
- Arts and Humanities (1122)
- Social and Behavioral Sciences (1029)
- Physical Sciences and Mathematics (782)
- Medicine and Health Sciences (762)
-
- Engineering (582)
- Animal Sciences (501)
- Education (438)
- Biology (428)
- Environmental Sciences (309)
- Psychology (288)
- Ecology and Evolutionary Biology (257)
- Biochemistry, Biophysics, and Structural Biology (246)
- Microbiology (205)
- Chemistry (200)
- Anthropology (192)
- Natural Resources and Conservation (178)
- Medical Sciences (176)
- Plant Sciences (176)
- Pharmacy and Pharmaceutical Sciences (162)
- English Language and Literature (158)
- Molecular Biology (158)
- History (157)
- Dairy Science (153)
- Communication (152)
- Sociology (138)
- Creative Writing (136)
- Art and Design (134)
- Civil and Environmental Engineering (124)
- Religion (120)
- Institution
- Keyword
-
- College of Arts Humanities and Social Sciences (196)
- College of Natural Science and Mathematics (78)
- Morgridge College of Education (68)
- Education (59)
- Daniel Felix Ritchie School of Engineering and Computer Science (57)
-
- Joint Ph.D. Program in Study of Religion (52)
- Biological Sciences (48)
- Gender (47)
- Fiction (41)
- Rhetoric (41)
- Anthropology (38)
- Inflammation (38)
- Poetry (37)
- Technology (37)
- Cancer (36)
- Art (35)
- Communication (34)
- Psychology (34)
- English and Literary Arts (33)
- Phenomenology (32)
- Josef Korbel School of International Studies (30)
- Memory (30)
- Ecology (29)
- Ethics (29)
- Health and environmental sciences (29)
- Apoptosis (28)
- Film (28)
- Race (27)
- Stress (27)
- Identity (26)
- Publication Year
Articles 8161 - 8190 of 8968
Full-Text Articles in Entire DC Network
The Concept Of The Flapper In The Early Writings Of F. Scott Fitzgerald, Janet Foster Carroll
The Concept Of The Flapper In The Early Writings Of F. Scott Fitzgerald, Janet Foster Carroll
Electronic Theses and Dissertations
A curious, but important, relationship exists between the social history of a particular age and the imaginative literature of the same period. The writings in both areas become major sources of knowledge about that era for readers in future generations. The following thesis is the outgrowth, in part, of this interest – an examination of the concept of the flapper in the early works of F. Scott Fitzgerald. For years Fitzgerald has been regarded as the chronicler of his Age. As early as 1920 he was heralded by the public as “Spokesman for the Younger Generation,” and although he seems …
A Bacteriological Study Of Abscesses Of Swine And Cattle, Lawrence Joseph Biever
A Bacteriological Study Of Abscesses Of Swine And Cattle, Lawrence Joseph Biever
Electronic Theses and Dissertations
Condemnation of abscessed portions of swine and beef carcasses is an important economic problem to the meat packing industry and, consequently, to the individual stock producer. The Meat Inspection Division of the Agricultural Research Service of the U.S. Department of Agriculture, in its summary of activities from 1955 through 1969 (2), reported that the numbers of abscessed portions from cattle and swine have increased (Table 1 and Figure 1). In this 10-year period the number of abscessed parts condemned in swine increased from 1.4% (1,397,248) of the animals slaughtered to 3.9% (2,660,522). During the same period of time the number …
An Economic Analysis Of Livestock Auctions In South Dakota, Donald K. Bendt
An Economic Analysis Of Livestock Auctions In South Dakota, Donald K. Bendt
Electronic Theses and Dissertations
The structure of the livestock industry in the United States has undergone change in the past three decades. Integration, scale economies, changed eating habits, production and processing innovations, decentralization and increased demand for service have all affected the market structure. During this change, however, livestock auctions have remained important outlets for marketing livestock. Since the establishment of the first auction at Yankton in 1930, livestock auctions in South Dakota have become increasingly important.1 By 1937 the number had increased to 34. In 1964 there were 58 auctions operating in the state handling an annual volume of almost three million head …
Hydrogen Sulfide Formation By Escherichia Freundii From Organic Compounds, Martin Bembers
Hydrogen Sulfide Formation By Escherichia Freundii From Organic Compounds, Martin Bembers
Electronic Theses and Dissertations
The evolution of hydrogen sulfide by microorganisms has been studied for many years. Until recently, most of the research was in the taxonomical and clinical areas. Much work was done to perfect a cultural medium capable of demonstrating hydrogen sulfide production, using this characteristic to distinguish between groups of organisms. Triple sugar iron agar, Kliglers, lead acetate agar, urea agar base concentrate, and peptone iron medium used today. The extensive investigation was to find medium to show a color change in response to hydrogen sulfide production without toxicity to the growing cells. Hydrogen sulfide producing bacterial have been isolated from …
The Response Of Poults To Growth And Antirachitic Factors Of Soybean Meal And Corn, Richard Lane Arnold
The Response Of Poults To Growth And Antirachitic Factors Of Soybean Meal And Corn, Richard Lane Arnold
Electronic Theses and Dissertations
Soybean by-products have been used for animal feed protein extensively in the past years. Soybean meal has become a major source for poultry diets. Being a plant source of protein soybeans potentially could provide protein for animals in almost unlimited quantities. However, there are certain problems encountered in the feeding of soybean products to poultry. The research for this paper deals with the use of soybean the use of soybean protein in the diets of turkey poults. Isolated soy protein which is commonly used for purified diet studies contains factor(s) which cause reduced growth and a rachitic-like conditions of turkey …
Fox-Prey Relationships In Eastern South Dakota, Robert L. Drieslein
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 …
Seasonal Movements Of Prairie Grouse In South Dakota, Warren W. Jackson
Seasonal Movements Of Prairie Grouse In South Dakota, Warren W. Jackson
Electronic Theses and Dissertations
From 1962 through 1966, 1,401 plains sharp-tailed grouse (Pedicecetes phasianellus jamesi) and greater prairie chickens (Tympanuchus cupide pinnatus) were trapped in Gregory and Lyman Counties in south-central South Dakota. Cannon-projected nets and funnel traps were used to capture prairie grouse on breeding grounds and winter baitsites. Some birds were marked with backtags and leg-markers. Movement information was obtained from field observations, hunter reports, sharp-tailed grouse collections, and by recapturing banded birds. Male birds moved less than two miles from winter baitsites to breeding areas; most movements over five miles were made by immature female birds. Seventy-seven percent of the hunter …
Comparison Of Two Cultures For Use In Preacidified Skimmilk For Cottage Cheese Manufacture, Daryl D. Boddicker
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
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
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 …
Effects Of Orally Administered Sodium D-Thyroxine Upon Pregnancy Progression In Euthyroid Rabbits And Its Effect Upon The Newborn, Gary A. Thibodeau
Effects Of Orally Administered Sodium D-Thyroxine Upon Pregnancy Progression In Euthyroid Rabbits And Its Effect Upon The Newborn, Gary A. Thibodeau
Electronic Theses and Dissertations
Many authorities believe that prophylactic treatment of idiopathic hypercholesterolemia will prevent atherosclerosis and plaque formation which almost always precedes clinical arteriosclerosis and subsequent degenerative heart disease. There has been intensive research investigation initiated to provide a pharmacologic agent that will lower elevated serum cholesterol levels in mammals including humans. Several hypocholesterolemic drugs are being tested at the present time, one of the most promising is the dextro-rotary isomer of thyroxine. This study was conducted not only to determine the effects of orally administered dextrothyroxine on pregnancy progression, but also to provide information for further investigations concerning alterations related to hypercholesterolemic …
Ovine Phosphatic Urolithiasis, Don H. Bushman
Ovine Phosphatic Urolithiasis, Don H. Bushman
Electronic Theses and Dissertations
A series of experiments was conducted using lambs and rats to determine the effect of various levels and sources of dietary phosphate on the incidence of phosphatic urinary calculi. Additional experiments were conducted to determine the degree of protection afforded sheep against urolithiasis by feeding various salts, and to determine the effect of these salts on excretion and retention of various ions. The lambs used in the sheep experiments were crossbred lambs weighing approximately 30 to 33 kg. They were fed a fattening ration consisting of ground shelled corn, alfalfa hay or silage (corn or sorghum) and soybean meal (approximately …
Cooperative Vocational Schools For South Dakota, Nicholas George Debilzan
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 …
Genetic Parameters Among Production, Carcass Composition And Carcass Quality Traits Of Beef Cattle, Darrell A. Busch
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
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 …
Digestibility Studies With Western Wheat Grass, Marvin John Wurster
Digestibility Studies With Western Wheat Grass, Marvin John Wurster
Electronic Theses and Dissertations
In order to make the most economical usage of our range forages it is essential that we know when the forage is most digestible in order for livestock to obtain maximum benefit from it. For many years cutting date has been the most common measure used to determine when a forage contains the most nutritive value. In many grasses emergence of the seed head or seed maturity has been used to determine when a particular forage should be harvested, However, western wheatgrass (Agropyron mithill) is not dependent on seed for reproduction and under range conditions often does not produce a …
The Initial Year Of The Title I Program At Whittier Junior High School In Sioux Falls, South Dakota, Daniel A. Oursland
The Initial Year Of The Title I Program At Whittier Junior High School In Sioux Falls, South Dakota, Daniel A. Oursland
Electronic Theses and Dissertations
Title I is a program of aid to education under the auspices of the U.S. Department of Health, Education, and Welfare. This treatise will be concerned with the formulation and implementation of the Title I program at Whittler Junior High School in Sioux Falls, South Dakota, during the summer of 1966. The Title I program at Whittler Junior High ls one of the many innovations to be found in this program of federal aid to education. The range of programs acceptable under Title I is as great as the ingenuity of individual administrators and teachers. Of course, certain specifics must …
A Glossary Of The Ancrene Riwle, Sue B. Beckham
A Glossary Of The Ancrene Riwle, Sue B. Beckham
Electronic Theses and Dissertations
No abstract provided.
A Critical Exposition Of Joseph Conrad's Heart Of Darkness, Jane Edel Lewis
A Critical Exposition Of Joseph Conrad's Heart Of Darkness, Jane Edel Lewis
Electronic Theses and Dissertations
No abstract provided.
Effects Of Dieldrin On Reproduction Of Penned Hen Pheasants, Thomas Donald Atkins
Effects Of Dieldrin On Reproduction Of Penned Hen Pheasants, Thomas Donald Atkins
Electronic Theses and Dissertations
Pen studies to determine the effects of dieldrin on reproduction of the hen pheasant were conducted for two breeding seasons, Hen pheasants were caged individually and administered encapsulated dieldrin at weekly intervals. The first season, treatment levels were 0, 2 or 4 mg of dieldrin per hen per week. Hens receiving 4 mg weighed more and laid heavier eggs than the controls. However, these differences were not attributed to the effects of dieldrin, but to the condition of the hens when first treated. Hatchability of eggs from the 2 mg group was significantly higher for an undetermined reason. Feed consumption, …
Factors Affecting Body, Texture, And Water Holding Capacity Of A New Low-Fat Spread-Type Dairy Product, Basil K. Dalaly
Factors Affecting Body, Texture, And Water Holding Capacity Of A New Low-Fat Spread-Type Dairy Product, Basil K. Dalaly
Electronic Theses and Dissertations
At the South Dakota State University Dairy Science Department, a challenging work is being conducted to develop a new spread type· dairy product which is made almost entirely of dairy ingredients. It contains about 40% fat, 6% protein, 40% water, and 1.9% salts. Among the problems which faced the workers on this project were the process induced changes in the protein and the water holding capacity, which are interlinked. The problem of water holding capacity is increased by the high water content of the product compared with butter, which contains about 16% water. Maintaining the stability of the fat emulsion …
Minimum Resource Requirements For Specified Levels Of Income In Faulk County, South Dakota, Dwaine Edward Umberger
Minimum Resource Requirements For Specified Levels Of Income In Faulk County, South Dakota, Dwaine Edward Umberger
Electronic Theses and Dissertations
The purpose of this study is to determine combinations of agricultural resources and enterprises required to obtain specified farm income levels in Faulk County, South Dakota. The income level of the farmer in Faulk County depends on the quantity and quality of the resources controlled and the efficiency achieved in utilizing these resources. The level of farm income in Faulk County is often inadequate to meet both the requirements of the farm firm and the needs or desires of the operator and his family. Many farmers are making adjustments to increase their income levels.
The Evaluation Of Soybean Protein As A Major World Food Supply, Ray D. Branham
The Evaluation Of Soybean Protein As A Major World Food Supply, Ray D. Branham
Electronic Theses and Dissertations
There is a need to find a high protein food that is inexpensive and yet contains all the essential amino acids. So far there has been small scale attempts made by a handful of companies to utilize some type of high protein product. Soybean seemed to be a likely possibility to fulfill these qualifications. The primary objective for doing this research problem is to attempt to answer whether soybean protein fits the qualifications necessary to alleviate the world food problem by proving to be an acceptable and inexpensive, yet highly nutritive food for those now suffering or those who will …
A Comparison Of The Social Criticism In Melville's Typee And Thoreau's Walden, Mary Riedy
A Comparison Of The Social Criticism In Melville's Typee And Thoreau's Walden, Mary Riedy
Electronic Theses and Dissertations
Herman Melville and Henry David Thoreau are two of the most original American authors who appeared during the first half of the nineteenth century. Although the writings of both Melville and Thoreau have been examined extensively in scholarship, little has been done in the way of attempting a comparison of their work. In fact, Melville and Thoreau was an avowed member of the Transcendentalist movement, which Melville openly opposed.1 There are, indeed, many dissimilarities between the two writers. Thoreau belonged to the Concord group of authors, while Melville did not. Melville was primarily a novelist while Thoreau’s prose works were …
Lipid Mobilization In Beef And Rabbits As Affected By Marketing-Induced Stress Or Acth-Induced Stress, John R. Romans
Lipid Mobilization In Beef And Rabbits As Affected By Marketing-Induced Stress Or Acth-Induced Stress, John R. Romans
Electronic Theses and Dissertations
The effect of stress on intramuscular and plasma lipids was studied in rabbits and beef. Nine mature rabbits were subjected to a constant infusion of ACTH (1.5 mU./min./kg.). Four rabbits completed a 12 hour treatment and two completed an 11-hour treatment. The remaining three rabbits survived treatments of 6, 4, and 2 hours. Blood samples taken at 0, 1, 3, 6, 9 and 12 hours or immediately upon death if it occurred before 12 hours. Initial and final muscle biopsies were taken from the longissimus dorsi directly posterior to the 13th rib on right and left sides, respectively. The stress …
Conrad's Universe : Nature Imagery In Almayer's Folly, Stephen Robert Pieschel
Conrad's Universe : Nature Imagery In Almayer's Folly, Stephen Robert Pieschel
Electronic Theses and Dissertations
No abstract provided.
Insanity In The Novels Of F. Scott Fitzgerald / By Jerry Ann Riggs, Jerry Ann Riggs
Insanity In The Novels Of F. Scott Fitzgerald / By Jerry Ann Riggs, Jerry Ann Riggs
Electronic Theses and Dissertations
No abstract provided.
The Gonadotrophic Effect Of Compounds Which Mimic Juvenile Hormone In Aedes Aegypti / By Billie Rae Shivers, Billie Rae Shivers
The Gonadotrophic Effect Of Compounds Which Mimic Juvenile Hormone In Aedes Aegypti / By Billie Rae Shivers, Billie Rae Shivers
Electronic Theses and Dissertations
No abstract provided.
In Vitro Effects Of Vaccinia Virus On Ehrlich Ascites Carcinomacells / By Howell Wade Rogers, Howell Wade Rogers
In Vitro Effects Of Vaccinia Virus On Ehrlich Ascites Carcinomacells / By Howell Wade Rogers, Howell Wade Rogers
Electronic Theses and Dissertations
No abstract provided.
Production Of The Marine Shrimp (Penaeus Fluviatilis Say And Penaeus Aztecus Ives) In Texas And Louisiana Waters, And The Relation Of Rainfall And Fresh Water Drainage, Judith Clark Edwards
Production Of The Marine Shrimp (Penaeus Fluviatilis Say And Penaeus Aztecus Ives) In Texas And Louisiana Waters, And The Relation Of Rainfall And Fresh Water Drainage, Judith Clark Edwards
Electronic Theses and Dissertations
No abstract provided.