Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Electronic Theses and Dissertations

Discipline
Institution
Keyword
Publication Year

Articles 10591 - 10620 of 10913

Full-Text Articles in Entire DC Network

Lipid And Amino Acid Studies Of Selenium Toxicity With The Rat, Mary Jane Abraham Jan 1966

Lipid And Amino Acid Studies Of Selenium Toxicity With The Rat, Mary Jane Abraham

Electronic Theses and Dissertations

Selenium exhibits unusual biological properties in that it is a micro nutrient for animals (1) and some plants (2) and yet at slightly higher levels it may be very toxic (3,4). Neither the active forms of selenium nor the mechanisms by which its biological effects are produced are well understood. Thus, many aspects remain to the investigated in this area. Franke (9), while working with the affected grain at South Dakota State College, produced the toxic symptoms experimentally. Following the discovery by Robinson (10) of selenium in toxic forages and grains. Franke (12) further deduced that plants incorporate soil selenium …


Studies And Applications Of The Theory Of Inventory And Production, Om Parkash Goel Jan 1966

Studies And Applications Of The Theory Of Inventory And Production, Om Parkash Goel

Electronic Theses and Dissertations

The control of inventories is one of the most complex and far-reaching of all business activities. It is the focal point of many seemingly conflicting interests and considerations – both short and long range. It’s planning and execution involves participation by most of the functional segments of a business; sales, production, purchasing, finance and accounting. The end result achieved has a major bearing on the company’s financial strength and competitive position, since it directly affects the quality of service to customers, production costs, earnings and soundness of working capital position. Two facts reinforce this estimate of the importance of inventory …


Cytogenetic Effects Of X-Irradiation In The Male Mouse, Daniel White Bath Jr Jan 1966

Cytogenetic Effects Of X-Irradiation In The Male Mouse, Daniel White Bath Jr

Electronic Theses and Dissertations

No abstract provided.


Ecology And Partial Characterization Of Bacteriophages In Wastewater, Thomas Kent Donovan Jan 1966

Ecology And Partial Characterization Of Bacteriophages In Wastewater, Thomas Kent Donovan

Electronic Theses and Dissertations

No abstract provided.


A Study Of Total Plankton In Minnow Rearing Ponds With Variations Of Treatment / By Chen-Nang Tai, Chen-Nang Tai Jan 1966

A Study Of Total Plankton In Minnow Rearing Ponds With Variations Of Treatment / By Chen-Nang Tai, Chen-Nang Tai

Electronic Theses and Dissertations

No abstract provided.


Life History Of The Parasites Of The Mining Bee Anthophora Abrupta (Anthophoridae) / By Clyde Flake Sartor, Jr, Clyde Flake Sartor Jr Jan 1966

Life History Of The Parasites Of The Mining Bee Anthophora Abrupta (Anthophoridae) / By Clyde Flake Sartor, Jr, Clyde Flake Sartor Jr

Electronic Theses and Dissertations

No abstract provided.


3-Aminoalkyl-2-Benzoalinones / By Jimmie Lloyd Valentine, Jimmie Lloyd Valentine Jan 1966

3-Aminoalkyl-2-Benzoalinones / By Jimmie Lloyd Valentine, Jimmie Lloyd Valentine

Electronic Theses and Dissertations

No abstract provided.


Browning In The Presence Of Biblical Criticism And Darwinism / By George W. Vickery, Jr, George W. Vickery Jr Jan 1966

Browning In The Presence Of Biblical Criticism And Darwinism / By George W. Vickery, Jr, George W. Vickery Jr

Electronic Theses and Dissertations

No abstract provided.


The Ontogenesis Of Experimental Convulsions In The Golden Hamster / By William Dick Robinson, William Dick Robinson Jan 1966

The Ontogenesis Of Experimental Convulsions In The Golden Hamster / By William Dick Robinson, William Dick Robinson

Electronic Theses and Dissertations

No abstract provided.


An Introductory Plankton Survey Of The Grand Lake Atchafalaya River Basin, Brother Michael Dotson Jan 1966

An Introductory Plankton Survey Of The Grand Lake Atchafalaya River Basin, Brother Michael Dotson

Electronic Theses and Dissertations

No abstract provided.


A Study Of Children's And Parents' Expressions Of Preference Forthe Sex Of Their Children And Children's Perceptions Of Parents' Preference, Lynn Alexander England Jan 1966

A Study Of Children's And Parents' Expressions Of Preference Forthe Sex Of Their Children And Children's Perceptions Of Parents' Preference, Lynn Alexander England

Electronic Theses and Dissertations

No abstract provided.


Studies On The Structure And Biosynthesis Of Extracellular Polysaccharide Of Alcaligenes Faecalis Strain C-13, George Washington Buffaloe Iv Jan 1966

Studies On The Structure And Biosynthesis Of Extracellular Polysaccharide Of Alcaligenes Faecalis Strain C-13, George Washington Buffaloe Iv

Electronic Theses and Dissertations

No abstract provided.


Some Potential Medicinal Agents Derived From 3-Azabicyclo [3.2.2]-Nonane, Pramod Prabhakar Karkhanis Jan 1966

Some Potential Medicinal Agents Derived From 3-Azabicyclo [3.2.2]-Nonane, Pramod Prabhakar Karkhanis

Electronic Theses and Dissertations

No abstract provided.


Development Of The Anti-Evolution Bill In The Mississippi Legislature In 1926, Edwin Bernard Massey Jan 1966

Development Of The Anti-Evolution Bill In The Mississippi Legislature In 1926, Edwin Bernard Massey

Electronic Theses and Dissertations

No abstract provided.


The Effects Of Altered Adrenocortical Hormone Levels On The Convulsive Responses Of Rats To Flurothyl / By Mei-Quey Su, Mei-Quey Su Jan 1966

The Effects Of Altered Adrenocortical Hormone Levels On The Convulsive Responses Of Rats To Flurothyl / By Mei-Quey Su, Mei-Quey Su

Electronic Theses and Dissertations

No abstract provided.


Evaluation Of And Tentative Design Criteria For Anaerobic Lagoons As A Method Of Swine Manure Disposal In South Dakota, David Richard Curtis Jan 1965

Evaluation Of And Tentative Design Criteria For Anaerobic Lagoons As A Method Of Swine Manure Disposal In South Dakota, David Richard Curtis

Electronic Theses and Dissertations

The problem of disposal of animal wastes has increased with modern methods of mass producing hogs, poultry, and other livestock and livestock products. With the increase popularity of confinement housing and the purchase of feed, less land is needed to raise more livestock and less land is available for disposal of the manure produced. Several methods for the disposal of hog manure have been suggested by various authors I the fields of agriculture and engineering. These proposed solutions include: field spreading, drying, composting, and lagooning. The purpose of this research was: to determine the extent to which lagoons were being …


Effects Of B Vitamin Deficiencies On Energy Metabolism Of The Chick, William Clarence Lockhart Jan 1965

Effects Of B Vitamin Deficiencies On Energy Metabolism Of The Chick, William Clarence Lockhart

Electronic Theses and Dissertations

Approximately two decades ago Robertson et al. (1948) reported that high-energy diets supported faster growth of young chicks with an improvement in feeding efficiency. This seemed to open an era in poultry nutrition in which much work was conducted in order to establish the quantitative relationships between dietary energy levels and nutrients. With current emphasis on the energy content of the diet, a knowledge of those factors which interfere with the most efficient utilization of energy is important. Nutritional imbalance was shown by Sure (1941) to decrease the net energy or productive energy content of the diet. The B complex …


A Study Of The Image Of Vocational Education In South Dakota Schools, Melvin T. Simek Jan 1965

A Study Of The Image Of Vocational Education In South Dakota Schools, Melvin T. Simek

Electronic Theses and Dissertations

Under the provisions of the Smith-Hughes Act and supplementary acts comprehensive program of vocational education have been developed. Although much has been accomplished, existing programs need to be expanded and new programs developed if vocational education is to be made available to all who can profit from the instruction. Vocational education does not take the place of general academic education, but rather supplements and enhances it for students who want specific training for a chosen occupation. Vocational education is an important part of a well-balanced school program and aims at developing competent economically, socially, emotionally, physically, and intellectually and in …


Effect Of Amino Acids On The Nature Of The Nitrogenase System In Aerobacker Aerogens, Duane C. Yoch Jan 1965

Effect Of Amino Acids On The Nature Of The Nitrogenase System In Aerobacker Aerogens, Duane C. Yoch

Electronic Theses and Dissertations

In the past 30 years many aspects of biological nitrogen fixation have been studied intensively by many different workers. These studies have included: the agents of fixation, the physiology of fixation, inhibitors of fixation, and cell free nitrogen fixation and symbiont relationships during fixation. Ten years ago workers in the field postulated the nitrogenase system was adaptive in nature. This was the result of several workers finding it necessary to add a small amount of fixed nitrogen to their cultures before they would fix atmospheric nitrogen. Thus far the only work that has been done on the inductive phenomenon of …


Laboratory Rearing Of Western Corn Rootworms And Hybridization Of The Western Corn Rootworm (Diabrotica Virgifera) And Northern Corn Rootworm (D. Longicornis) (Coleoptera: Chrysomelidae), Ada Mae Hintz Jan 1965

Laboratory Rearing Of Western Corn Rootworms And Hybridization Of The Western Corn Rootworm (Diabrotica Virgifera) And Northern Corn Rootworm (D. Longicornis) (Coleoptera: Chrysomelidae), Ada Mae Hintz

Electronic Theses and Dissertations

The Corn rootworms are beetles of the family Chrysomelidae, genus Diabrotica whose larvae feed on the roots of corn. Large populations of the western corn rootworm, Diabrotica virgifera Leconte, recently developed in Nebraska and surrounding states, thus increasing the economic importance of these insects. Widespread soil insecticide treatments for both species were adopted after 1951 and have become widely accepted. Considering their economic importance, little is recorded about the biology of rootworms. Perhaps this is because they are soil insects. This study was undertaken to provide some of the basic information necessary to research on better methods of control. Members …


A Thematic Approach To John Steinbeck's In Dubious Battle, James W. Grinnell Jan 1965

A Thematic Approach To John Steinbeck's In Dubious Battle, James W. Grinnell

Electronic Theses and Dissertations

The purpose of this study is to provide the reader, particularly the undergraduate, with an aid for studying John Steinbeck’s In Dubious Battle. In the course of this theses these four themes, namely, the phalanx theory, the concept of leadership and of ownership, and non-teleological thought, are examined first in Steinbeck’s writing in general, and then in novel In Dubious Battle in particular. Because the reader, including the undergraduate student of literature, usually does not have the time to read more than two or possibly three works by a given author, he may not be able to establish the relative …


A Modified Voges-Proskauer Method Of Determining Diacetyl In Dairy Cultures, Dwain Finkenbiner Jan 1965

A Modified Voges-Proskauer Method Of Determining Diacetyl In Dairy Cultures, Dwain Finkenbiner

Electronic Theses and Dissertations

Dairy scientists have known for a number of years that diacetyl is one of the principle flavor components of butter, buttermilk, and cheese cultures. Of the tests which have been introduced to determine diacetyl, one of the first was the heavy metal gravimetric method. This procedure involved distillation of the diacetyl from the mother substance. The most common derivative formed was nickel dimethylglyoximate. Principle disadvantage of this method were that large amounts of sample were required for steam distillation when the products were low in diacetyl. It was also a time consuming procedure because the steam distillation could take as …


Parasites Of Fishes Of Oahe And Big Bend Reservoirs, South Dakota, Gerald A. Alleman Jan 1965

Parasites Of Fishes Of Oahe And Big Bend Reservoirs, South Dakota, Gerald A. Alleman

Electronic Theses and Dissertations

During the summer and fall of 1964, 292 fishes collected from Oahe and Big Bend Reservoirs in central South Dakota were examined for parasites. Sixty-five percent of the 18 different species of fishes examined were parasitized by at least one of the 16 species of parasites found. Seventy-five percent of the 162 fishes examined from Oahe Reservoir were found to be infected with at least one species pf parasite, and 54 percent of the 130 fishes examined from Big Bend Reservoir were infected. The fishes found to be harboring the largest number of species of parasites were the black bullheads …


A New Partial Differential Equation And A New Instantaneous Current-Time Curve For Polarography, Russell B. Kidman Jan 1965

A New Partial Differential Equation And A New Instantaneous Current-Time Curve For Polarography, Russell B. Kidman

Electronic Theses and Dissertations

Present theories describing polarography processes are inadequate for, they do not correctly predict experimental results. However, this use of the average conceals how poorly the instantaneous time-dependence of the diffusion current is represented. Accordingly this paper attempts to illuminate the situation and do what it can to remedy the problem. Some authors have sought to make theory agree with experiment by improving the approximate solution of the accepted partial differential equation. Such attempts have met with little success in predicting the instantaneous current. The present paper points out a flaw inherent in the accepted p.d.e. A few workers have adopted …


The Post-Enlightenment Pattern Of Conversion : Its Manifestations In The Art And Life Of Samuel Taylor Coleridge, Karl David Gottschalk Jan 1965

The Post-Enlightenment Pattern Of Conversion : Its Manifestations In The Art And Life Of Samuel Taylor Coleridge, Karl David Gottschalk

Electronic Theses and Dissertations

No abstract provided.


The Development Of The Ovule And Megagametophyte In Rhexia Marina L., Albert Louis Etheridge Jan 1965

The Development Of The Ovule And Megagametophyte In Rhexia Marina L., Albert Louis Etheridge

Electronic Theses and Dissertations

No abstract provided.


Shakespeare's Women And The Seven Deadly Sins, Frances Brown Kent Jan 1965

Shakespeare's Women And The Seven Deadly Sins, Frances Brown Kent

Electronic Theses and Dissertations

No abstract provided.


George Bernard Shaw's Concepts Of Evolution: Can They Produce Asuperman?, Blair Edward Beasley Jr Jan 1965

George Bernard Shaw's Concepts Of Evolution: Can They Produce Asuperman?, Blair Edward Beasley Jr

Electronic Theses and Dissertations

No abstract provided.


Some Chemotherapeutic Agents Derived From Aralkyl Detones, Pyare Parimoo Jan 1965

Some Chemotherapeutic Agents Derived From Aralkyl Detones, Pyare Parimoo

Electronic Theses and Dissertations

No abstract provided.


A Study Of The Parasites Of Mud Dauber Wasps / By Sylvia Allan Spears, Sylvia Allan Spears Jan 1965

A Study Of The Parasites Of Mud Dauber Wasps / By Sylvia Allan Spears, Sylvia Allan Spears

Electronic Theses and Dissertations

No abstract provided.