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Articles 10111 - 10140 of 10916
Full-Text Articles in Entire DC Network
The Total Synthesis Of [+ Or -]-3-Methoxy-N-Acetylnornantenine, Michael Morgan
The Total Synthesis Of [+ Or -]-3-Methoxy-N-Acetylnornantenine, Michael Morgan
Electronic Theses and Dissertations
No abstract provided.
The Response Of The Turbellarian, Cura Foremani, To Iodide, Iodine, And Thyroxin / By Joseph Spencer Young, Joseph Spencer Young
The Response Of The Turbellarian, Cura Foremani, To Iodide, Iodine, And Thyroxin / By Joseph Spencer Young, Joseph Spencer Young
Electronic Theses and Dissertations
No abstract provided.
Effects Of Hydrogen Ion Buffers On Photosynthetic Oxygen Evolution In The Blue-Green Alga, Agmenellum Quadruplicatum, Susan Nancy Bridges
Effects Of Hydrogen Ion Buffers On Photosynthetic Oxygen Evolution In The Blue-Green Alga, Agmenellum Quadruplicatum, Susan Nancy Bridges
Electronic Theses and Dissertations
No abstract provided.
A Comparative Study Of Phosphate Measurement In Flood Control Reservoirs In Northern Mississippi, John Armstrong Davis
A Comparative Study Of Phosphate Measurement In Flood Control Reservoirs In Northern Mississippi, John Armstrong Davis
Electronic Theses and Dissertations
No abstract provided.
Fish Parasites Of Mckellar Lake, Tennessee / By Roger Douglas Woods, Roger Douglas Woods
Fish Parasites Of Mckellar Lake, Tennessee / By Roger Douglas Woods, Roger Douglas Woods
Electronic Theses and Dissertations
No abstract provided.
A Study On The Reproductive Biology Of The Turbellarian, Cura Foremanii (Girard, 1852), Louis Spero Peters
A Study On The Reproductive Biology Of The Turbellarian, Cura Foremanii (Girard, 1852), Louis Spero Peters
Electronic Theses and Dissertations
No abstract provided.
Pharmacy In Cuba : A Descriptive Study Of The Effect A Change In The Political System From A Democracy To Communism Had On The Profession Of Pharmacy, Raquel Garcia
Electronic Theses and Dissertations
No abstract provided.
The Legal Development Of Farmer Cooperatives / By William Ewing Scott, William Ewing Scott
The Legal Development Of Farmer Cooperatives / By William Ewing Scott, William Ewing Scott
Electronic Theses and Dissertations
No abstract provided.
Novel Tyrosine Derivatives Which Are Structurally Analogous To Liquid Crystalline Compounds, Lawrence Clinton Anderson
Novel Tyrosine Derivatives Which Are Structurally Analogous To Liquid Crystalline Compounds, Lawrence Clinton Anderson
Electronic Theses and Dissertations
No abstract provided.
A Comparative Study Of 16pf Profiles Of Alcohol Dependents And Social Drinkers : A Discriminant Analysis Approach / By William Harry Replogle, William Harry Replogle
A Comparative Study Of 16pf Profiles Of Alcohol Dependents And Social Drinkers : A Discriminant Analysis Approach / By William Harry Replogle, William Harry Replogle
Electronic Theses and Dissertations
No abstract provided.
A Survey Of Bryozoan Species And Ecology In Two Northern Mississippi Flood Control Reservoirs, John Withrow Burris
A Survey Of Bryozoan Species And Ecology In Two Northern Mississippi Flood Control Reservoirs, John Withrow Burris
Electronic Theses and Dissertations
No abstract provided.
Depositional Systems In The Midway And Wilcox Groups : Paleocene-Lower Eocene, North Mississippi, Merle James Duplantis
Depositional Systems In The Midway And Wilcox Groups : Paleocene-Lower Eocene, North Mississippi, Merle James Duplantis
Electronic Theses and Dissertations
No abstract provided.
Marianne Moore's Use Of Animals And Plants In Her Poetry, Somporn Wattanasan
Marianne Moore's Use Of Animals And Plants In Her Poetry, Somporn Wattanasan
Electronic Theses and Dissertations
No abstract provided.
Autoradiographic Localization Of C-14 Probenecid In Rat Kidney / By Magaly Sandra Vega, Magaly Sandra Vega
Autoradiographic Localization Of C-14 Probenecid In Rat Kidney / By Magaly Sandra Vega, Magaly Sandra Vega
Electronic Theses and Dissertations
No abstract provided.
An Analysis Of The Socioeconomic Factors Associated With Changing Numbers Of Farm Units In South Dakota, Keith A. Carter
An Analysis Of The Socioeconomic Factors Associated With Changing Numbers Of Farm Units In South Dakota, Keith A. Carter
Electronic Theses and Dissertations
This research study is not investigating the reasons that particular farm operators sell their farm units. The major focus of this study is to explain the change in the number of farm units by investigating changes in other socioeconomic factors. Thus, the problem to be studies in this research can be stated in question form as follows: What is the magnitude and variation of change in the number of farm unites by county in South Dakota, and the socio-economic factors are associated with this change in the number of farm units?
Computer Simulation Model Of The Immune Response Of Mice To Western Equine Encephalitis (Wee) Computer Simulation Model Of The Immune Response Of Mice To Western Equine Encephalitis (Wee) Virusirus, Gilbert Chi Kuna Ho
Electronic Theses and Dissertations
The lymphatic system of an animal is optimally developed to protect the body from antigenic invasion. The epithelial and subepithelial compartments of the body are provided with a vast number of wandering cells and a network of centralized lymphorecticular tissues. All of these are capable of reacting to intruding foreign antigens. Upon antigentic challenge, immunocompetent cells (ICC) or antigen specific lymphocytes are activated; this leads either to cell mediated and/or humoral antibody immune responses. The subsequent effect is an accumulation of the responding cells, both by local proliferation and recruitment from the circulation. Through the interaction of both cellular and …
Nucleophilic Substitution At Phosphorus: Phosphate Thioesters, Ronnie L. Wilde
Nucleophilic Substitution At Phosphorus: Phosphate Thioesters, Ronnie L. Wilde
Electronic Theses and Dissertations
It was my objective to try to determine the mechanism of nucleophilic substitution at phosphorus in monothiophosphate triesters and to apply what I learn to the other phosphate systems. I also tried to obtain more data to show that the Lewis acid-base type complex through the phosphoryl oxygen is existent and does influence the reaction.
A History Of Intercollegiate Athletics At Milligan College, 1887-1973, Billy H. Stout
A History Of Intercollegiate Athletics At Milligan College, 1887-1973, Billy H. Stout
Electronic Theses and Dissertations
Purpose. The problem of this study was to present the history of intercollegiate athletics at Milligan College from 1887-1973. Method. Both primary and secondary sources were used in gaining knowledge of the history of sports. Interviews were conducted with individuals who had been in the position of president or athletic director. All interviews were tape recorded. These interviews were transcribed for use in the study. A questionnaire was used to secure the opinions of professors, students, and former students. Past practices and records were gleaned from residents who had lived in the area of Milligan College for a great length …
Pheasant Reproduction And Survival As Related To Agricultural Fertilizer Use, Lawrence Francis Fredrickson
Pheasant Reproduction And Survival As Related To Agricultural Fertilizer Use, Lawrence Francis Fredrickson
Electronic Theses and Dissertations
Wing-clipped wild pheasants (Phasianus colchicus) were stocked in 1-acre and 0.5-acre pens having oat and bromegrass cover in 1972 and 1973 to test effects of fertilizer (Formulations: 34-0-0, 18-46-0, 0-46- 0, and 0-0-60) on pheasant reproduction and survival. One-half of the pens were fertilized with the recommended rate of pelleted fertilizer and the other half without fertilizer. Complete nest searches in July showed that nesting success was not significantly different (P>0.05) between treatments for both years. No significant difference (P>0.05) was found in clutch size or in number of ovulated follicles from control and experimental hens. Significantly more …
Feeding Of Hatchery-Reared Brown Trout (Salmo Trutta L.) In Relation To The Diet In A South Dakota Stream, Richard W. Mccoy
Feeding Of Hatchery-Reared Brown Trout (Salmo Trutta L.) In Relation To The Diet In A South Dakota Stream, Richard W. Mccoy
Electronic Theses and Dissertations
One thousand five hundred catchable brown trout (17-26 cm) were stocked into the South Fork of the Yellowbank River May 17, 1973. Samples were taken one month apart from May 22, 1973, through October 29, 1973. Fifteen-minute drift samples were collected every hour for 24 hours and trout were captured every 4 hours. Trout captured ruing the study varied in condition ® from 1.34 to 2.55. Condition progressively decreased through August, rose in September, and decreased again by the October sample. The average weight of brown trout increased through the September sample and decreased in October. Two peaks in number …
Studies Of The White Pelican In South Dakota: Reproductive Biology Of Wild Populations And Effects Of Polychlorinated Biphenyls And Ddt On The Behavior Of Penned Birds, Vernon Pat Mccrow
Studies Of The White Pelican In South Dakota: Reproductive Biology Of Wild Populations And Effects Of Polychlorinated Biphenyls And Ddt On The Behavior Of Penned Birds, Vernon Pat Mccrow
Electronic Theses and Dissertations
The learning behavior of penned white pelicans (Pelecanus erythrorhynchos) was studies 2 August to 5 October 1972 using a swimming pool – Y-maze apparatus in an operant conditioning experiment. The experiment consisted of three consecutive phases: trial-and-error learning, extinction, and relearning. Three groups of nine pelicans each were studied: a polychlorinated biphenyl (PCE) treated group, a DDT, DDD, DDE treated group, and a Control group. The object of this study was to determine the effect of PCB and DDT, DDD, DDE on the learning ability of penned white pelicans. Control, PCB, and DDT groups of penned white pelicans learned to …
Habitat Preferences And Food Habits Of Striped Skunks In Eastern South Dakota, Melvin S. Moe
Habitat Preferences And Food Habits Of Striped Skunks In Eastern South Dakota, Melvin S. Moe
Electronic Theses and Dissertations
Habitat preferences of striped skunks (Mephitis mephitis) in Brookings County, South Dakota, were determined rom the relationship of nighttime roadside indices to 25 habitat variables of 277, 1-square mile plots. Winter tracking was also conducted. Skunks were collected on the study area in 1972-1972, and contents of 59 stomachs and 63 colons were studied to determine food habits. Indices of prey abundance in different habitat types were obtained from snap-trap surveys. The 25 variables accounted for 14.9 percent of the variation in skunk numbers. The relationships of three of these variables to skunk numbers were significant (P<0.05). The significant variables and the variation accounted for by each were: (a) number of areas of idle grassland, 6.3 percent; (b) number of rockplies, 1.5 percent; and (c) acreage of idle grassland, 1.3 percent. Idle grasslands were the main activity centers of skunks tracked during the winter. Food habits were analyzed for the periods March-April, May-June, July-August, and September-November. Insects were the most frequently found food item in al time periods except March-April, during which mammals occurred more frequently. Mammals made up the largest volume of food in March-April and May-June. Amphibians made up the greatest volume in July-August, while amphibians, mammals, and insects were found in nearly equal volumes in September-November. Bird remains occurred during all time periods. Eggs were found in May-June and July-August. Meadow voles (Microtus spp.), the most frequent mammalian food item during all time periods, were common only in habitat types having heavy residual cover. Idle grassland is an important nestling cover for gamebirds and waterfowl. Since the number of areas of this cover type apparently has a stronger relationship with skunk numbers than its total acreage, grassland nesting cover might best be managed in large, homogeneous blocks. Areas managed in this way would probably support lower skunk densities than more diverse areas containing equal acreages of idle grassland, thus reducing nest predation by skunks. Skunk control programs should be most efficient when centered around idle grassland and rockplies.
Influence Of Vegetation On The Distribution Of Small Mammals On A Waterfowl Production Area, Douglas A. Searls
Influence Of Vegetation On The Distribution Of Small Mammals On A Waterfowl Production Area, Douglas A. Searls
Electronic Theses and Dissertations
. A study was conducted on a Waterfowl Production Area in Brookings County, South Dakota in 1972-73 to determine the distribution and abundance of small mammals. Three cover types, reseeded native grassed, brome-alfalfa, and bluegrass, were studied. Meadow voles (Microtus pennsylvanious), and deer mice (Peronyscus maniculatus) were captured most frequently. Jumping ice (Zapus hudsonius), masked shrews (Sorex cinerius), short tailed shrews (Blarins brevicauda), grasshopper mice (Omychomys leucogaster) and house mice (Mis musculus) were also taken. The bluegrass association had the highest number of small mammal captures and the reseeded native grass association has the least. There was no significant difference …
Development Of A Simulation Game In The Area Of Housing, Beverlee Olson Buenning
Development Of A Simulation Game In The Area Of Housing, Beverlee Olson Buenning
Electronic Theses and Dissertations
This study focused on the development of a simulation game to teach certain aspects of housing. Underlying the development of the game was the assumption that a simulation game can be an effective teaching technique. The development of the game involved the use of a simulation design: objectives and generalizations for housing, questions that required decision-making, and designing a game board. More precise objectives were (1) to gain information about simulation gaming, particularly current research in the area of gaming in home economics, and (2) to develop a game for use in teaching specific behavioral objectives in the area of …
Sulfur Supplementation With Soybean Meal Or Urea For Feedlot Lambs, Joseph Cletus Ebert
Sulfur Supplementation With Soybean Meal Or Urea For Feedlot Lambs, Joseph Cletus Ebert
Electronic Theses and Dissertations
One of the urgent tasks facing agricultural scientists throughout the world is that of supplying sufficient food of adequate quality to the ever-increasing human population. The problem is not only that of supplying calories but also providing adequate quantity and quality of protein. Ruminant animals have the ability to convert much plant energy, not utilizable or having low availability for man, and nonprotein nitrogen products into body tissues. Ruminant animals, therefore, can have a very important role in providing food for the human population. The most widely used nonprotein nitrogen compounds urea. The process of building amino acids into body …
Groundwater Quality In Water Supply Wells Surrounding The Sanitary Landfill At Brookings, South Dakota, David C. Odens
Groundwater Quality In Water Supply Wells Surrounding The Sanitary Landfill At Brookings, South Dakota, David C. Odens
Electronic Theses and Dissertations
In 1960, the city of Brookings, South Dakota began operating a solid waste disposal site in an abandoned gravel pit approximately two miles south of the city. Because the surrounding residences obtain their water supply from groundwater found in a shallow aquifer in the area, immediate concern was expressed about the effects of the sanity landfill of groundwater quality. In response to the objections to the refuse disposal site raised by-the people in the area, the city of Brookings initiated a study of groundwater quality at the site in 1960. Later, in 1964, a comprehensive study of the groundwater within …
Energy Sources In Starter Diets For Early Weaned Pigs, Leon Jon Reiner
Energy Sources In Starter Diets For Early Weaned Pigs, Leon Jon Reiner
Electronic Theses and Dissertations
The swine industry is largely dependent upon feed grains as major dietary ingredients because of the very limited ability or the pig to utilize roughages. The dependence upon feed grains puts the pig in direct competition with humans for available food supplies. Grains are an excellent source of carbohydrate but in general are a poor supplier or protein. Raising the level and quality or protein in corn and oats wou1d be of great economic and nutritional value. New uses of high protein ingredients, which were once used as supplementa1 protein for swine, are continually being implemented to help meet the …
Rna And Cell Volume Distribution Analysis Of Vee Virus Infected Mosquito Cell Cultures, Clayton Werner Naeve
Rna And Cell Volume Distribution Analysis Of Vee Virus Infected Mosquito Cell Cultures, Clayton Werner Naeve
Electronic Theses and Dissertations
The subject of this investigation is the Aedes albopictus (Aal) cell line infected with Venezuelan equine encephalomyelitis (VEE) virus, a group A arbovirus. This cell-virus system is an ideal choice for both types of analysis. Certain of the group A arboviruses have been looked at as "models" for ribovirus replication and thus have several advantages for an FNA study. The genome is a single strand of RNA containing only about a dozen cistrons, the virions contain only one polypeptide in the nucleocapsid and one in the envelope, and infectious RNA is easily isolated and titrated by sensitive plaque assay. In …
Synthesis Of S-(1-Diazo-2,2,2-Trifluorethyl) Cysteine Dioxide : A Potential Gutamine Antagonist, Robert M. Olson
Synthesis Of S-(1-Diazo-2,2,2-Trifluorethyl) Cysteine Dioxide : A Potential Gutamine Antagonist, Robert M. Olson
Electronic Theses and Dissertations
Compounds affecting the utilization of L-glutamine have a comparatively long history in the field of cancer chemotherapy. The Streptomyces antibiotics, azaserine (0-diazoacetyl-L-serine) and DON (6-diazo-5-oxo-L-norleucine) inhibit to varying extents those aminations in which glutamine serves as an amino group donor. This inhibition is achieved in at least one case by the glutamine antagonists alkylating the sulfhydryl group of the enzyme that catalyzes the amino group transfer of glutamine. A distinguishing feature of the diazo analogs of glutamine is the very reactive diazo group that enhances nucleophilic reactions on the adjacent carbon atom. Because of the increased reactivity created by the …
Comparison Of Methods For The Rapid Detection Of Streptococcus Bovis From Water, Edwin D. Oliver
Comparison Of Methods For The Rapid Detection Of Streptococcus Bovis From Water, Edwin D. Oliver
Electronic Theses and Dissertations
The pollution of water by fecal material presents a health hazard to cities obtaining water from streams and rivers since many pathogenic microorganisms, including the fecal streptococci, are associated with this material. Recent studies have furnished data indicating that the fecal streptococci are more accurate than coliform tests for evaluating the sanitary quality of water. The fecal streptococci are gram-positive cocci found in the intestines of man and animals. They have been further subdivided into the enterococcus and viridans streptococci which contain the Lancefield Group D antigen. The enterococci include Streptococcus faecalis and its varieties, while streptococcus b++ovis and Streptococcus …