Digital Commons Network^™

Effect Of Temperature On Sludge Digestion And Gas Production At The Racine Sewage Disposal Plant, Mitzi S. Heim

Bachelors’ Theses

Sewage is defined as the "spent water supply of a com­munity, together with those human and household wastes which are removed by water carriage supplemented in some instances by street washings and industrial wastes."

On The Production Of Polyploidy With Paradichlorbenzene, Mary Anne Carey

Bachelors’ Theses

The subject of polyploidy has been of scientific interest for some time. The true nature of the cause of this phenomenon has been disputed ever since its existence was made known. Polyploidy is the condition in which the haploid number of the chromosomes, contained within the nucleus, is multiplied so that there is a higher number of chromosomes present than there is in the typical diploid cell of that particular plant or animal. The diploid number of the chromois known as 2n, therefore, higher multiples would be referred to as 3n, 4n, 8n etc. Some plants or animals have one …

Micro-Density Determinations Of Liquids, Rachel L. Horowitz

Bachelors’ Theses

Recent developments in the field of microchemistry have aroused the necessity of accurate micro-methods for density determinations. Such methods have been developed by various investigators and some of them found their application in re­ search and industry, wherever the saving of material and time was an essential problem.

The purpose of this work is to compare all the methods of micro-density determinations found in literature, check their accuracy and simplicity and find their limitations and advantages.

The Effect Of The Ph On The Viscosity Of Various Gelatin Solutions, Theodore C. Kraus

Bachelors’ Theses

Tremendous research has been done in recent years In the field of the protein colloids. Our small, but nevertheless important knowledge of the protein colloids is due to such eminent investigators as Loeb, Kruyt, Freundlich, and Hardy, to name only a few. They have presented to the scientific world valuable experiments and reports of their work. However, much remains to be accomplished in spite of their achievements. The fact that the whole of the organic life processes concerns Itself with colloidal phenomena, particularly the reactions of large aggregates of protein particles, is indicative that the field is widespread in its …

Activity Of Papain On Gelatin Mixtures, Edward J. Ruschmann

Bachelors’ Theses

Within the Marquette chemical laboratories under the direction and supervision of Dr. John R. Koch, professor and head of the Chemistry Department, many noteworthy advances in enzyme chemistry have been achieved. A new type all glass, single unit viscometer was developed and perfected by Koch and now is the basis of the study of enzyme activity by viscometric methods. The use of this viscometer is not limited solely to work in these laboratories but has also been used with great success in bating and brewing.

The Conversion Of Certain Amino Acids To Carbohydrate In Normal Animals, Bergere Alfred Kenney

Chemistry and Chemical Biology ETDs

Among the earliest problems which interested the physiological chemist was that of the possibility of an interconversion of the major types of food-stuffs. That this conversion actually does take place in the case of carbohydrates changing to fats has been apparent, ever since Man began to fatten his domestic animals on a starchy diet. However, interconversion of the other types, such as that of fats to carbohydrates and proteins, or carbohydrates to proteins, and of proteins to carbohydrates and fats, is not so obvious, and even now, after many years of experimen­tation, the answer to the question is far from …

The Study Of The Physical And Chemical Factors Influencing The Plankton In The Menomonee River, Hermoise Katz

Bachelors’ Theses

The reasons for the choice of this study are several in number. Previous collecting trips had shown to some extent the relatively high productivity of organic life in this stream. From superficial external evidence, however, it seemed likely that the stream should contain some degree of pollution. The contradictory nature of these two observations called for furthur investigation. Then too, the nearness of the location of the Menomonee River to Marquette University contributed to the facility of such an investigation, and also pointed to the possibility that such a survey might be of some use to the Department of Biology. …

The Effects Of A Carbohydrate Deficient Diet On The Mouse, Walter Rudolph Sala

Bachelors’ Theses

Deficient diets have been used extensively as the basis for zoological experiments concerning the metabolism, and dietary requirements of individual animals. The majority of this work has been carried on with the rat as the subject, and resulting external physical variations as the experimental aim. The writer used the mouse as his subject, but, since no literature was available concerning this animal, a few similar experiments performed on the rat will be cited.

A Biochemical Study Of The Egg Yolk Discolorization Produced By Feeding Hens Cottonseed Meal., Albert Donald Swensen

LSU Historical Dissertations and Theses

No abstract provided.

The Effect Of Time, Temperature, And Pressure On The Hydrogenation Of Castor Oil, Anthony Toth

Bachelors’ Theses

The intention of the author in doing this research was to obtain some data on the effect of time, temperature, and pressure on the hydrogenation of castor oil at 100°C. The author is also interested to see if a method could be devised by which the saturated and unsaturated fatty acids could be separated from the hydroxy acids of hydrogenated castor oil.

The Effect Of Alcohols On Paramecia, William C. Lawler

Bachelors’ Theses

A phenomenon of surpassing biological interest is the adjustment of living substance to its surroundings. That living things should so act as to promote their own welfare is indeed wonderful; that such acts are common is evident on every hand.

Applications Of Artificial Radioactivity To Problems In Chemistry, D. E. Hull

Journal of the Minnesota Academy of Science

No abstract provided.

The Biological Use Of The Stable Mass Isotopes, Allan Hemingway

Journal of the Minnesota Academy of Science

No abstract provided.

A Study Of The Kjeldahl Method And A Modification For The Determination Of Nitrogen In Alcoholic Distillates., Margie M. Miller

Electronic Theses and Dissertations

No abstract provided.

A Study Of The True Fermentable Substances In Grain And The Development Of A Rapid Method For The Determination Of Pentosans., Marjorie M. Laning 1916-2010

Electronic Theses and Dissertations

No abstract provided.

Studies Of Hydrolysis Effects Upon Soil Colloids., Jack Ezelle Simpson

LSU Historical Dissertations and Theses

No abstract provided.

A Study Of The Properties Of Sodium - Calcium Saturated Clays., Maurice Mccall Vick

LSU Historical Dissertations and Theses

No abstract provided.

Fermentation Of Sugar Acids By Bacteria, Gordon B. Robbins, Keith H. Lewis

Department of Chemistry: Faculty Publications

Bacterial fermentation of the sugar acids has received little attention in comparison with the wide-spread use of the common aldoses and sugar alcohols. These acids, and especially their sodium salts, are well suited to bacteriological techniques because of their solubility and heat stability, yet their usefulness for investigating the relationship of chemical structure to biological utilization has only recently been recognized. Their application to systematic differentiation of bacteria has also been neglected.

Kendall, Bly and Haner (1923) concluded from a study of three monocarboxylic acids and three dicarboxylic acids that these compounds possessed little value for the differentiation of bacterial …

A Comparative Study Of The Proteolytic Activity Of Trypsin On Various Gelatins, Louis Hinkle Coggs

Bachelors’ Theses

Since 1839, the viscosity of liquids has been measured by means of capillary tubes. However, it was not until the year 1846, that the results of Poiaeu1lle's research were :made known to the public. Because of the comprehensiveness of Poiseuille's work, the concept of the laws controlling viscometry flow is attributed to him. For one hundred rears the subject of viscometry has been studied by many. During these years the principle a propounded by Poiseuille have been verified in general, but various corrections and modifications of viscometers in regard to drainage, surface tension, liquid head, and kinetic energy have been …

Electrolytic Preparation Of Glucuronic Acid From Glucose, Thomas Mcguine

Bachelors’ Theses

The present work was undertaken to check the results of Dr. R.A. Leutgoeb in the electrolytic preparation and also to further the separation of glucuronic acid from the electrolyte.

Because up to 1938 no efficient chemical method of glucuronic acid had been developed. Dr. Leutgoeb undertook to remedy this lack by making use of electrolysis for a preparation from alpha methyl-glucoside. Such a chemical method is needed if biochemists wish to successfully continue work on the metabolism and deoxioating functions of glucuronic acid. Biological means indeed produce glucuronic acid but in low yields and after much time and labor. Hence …

The Pressing Need Of A Practical Non-Technical Course In High School Chemistry, P. M. Glasoe

Journal of the Minnesota Academy of Science

No abstract provided.

A Study Of The Viscosity Of Gelatines, Mary Anthony Keller

Bachelors’ Theses

Only a casual perusal of the literature treating of enzymes impresses one with the importance of the subject. How could the process of digestion be carried on without the action of enzymes? The tanning industry is primarily concerned with so-called bates, which are enzymes. Other industrial ope.rations, such as brewing, the manufacture of glue, petroleum refining, the production of rubber and starch, are likewise largely dependent on enzymatic action. Another phase of enzyme activity turns to the prevention of disease and medical diagnosis.

Substrates are of no less importance. The present work is not so much a study of -enzymatic …

The Preparation Of Glucuronic Acid From Gum Acacia, Mary Laurissa Felix

Bachelors’ Theses

Initial interest in the preparation of glucuronic acid from gum acacia was prompted by several reasons. Being interested in both the chemical and biological fields, the subject of glucuronic acid made a strong appeal. Although glucuronic acid was discovered over fifty years ago, its position in physiology remained until recently undefined. Now, however, it seems fairly certain that this compound is closely related to carbohydrate metabolism and plays an im­portant role as a detoxicating agent in the body.

The laboratory preparation of glucuronic acid is still one of the important problems of chemistry. Our present knowledge of its synthesis and …

Public Water Supplies Of New Mexico, Kenneth F. Priest

Chemistry and Chemical Biology ETDs

Distribution of population in State. The estimated population for the State of New Mexico for the year 1930 was 423,300. A close observation of the population centers shows them to be scattered over a wide range of territory. The largest city, Albuquerque, has approximately 26,000 citizens. The next sites, according to the 1930 count, are three in number, Santa Fe, Roswell, and Clovis. The remaining population including rural districts do not number over eight thousand people.

A Chemical And Biological Study Of The Waters Of Elephant Butte Reservoir As Related To Fish Culture, John Greenbank

Chemistry and Chemical Biology ETDs

The investigation of fresh-water lakes with respect to fish and other aquatic life had its beginning in Europe in the latter half of the nineteenth century. Probably the only man who may be considered to be the founder of the science of limnology was F. A. Forel, of the University of Lausanne Switzerland. Professor Forel’s work was the start of a rapidly developing branch of study, not only in Europe, but also presently in North America.

A Comparison Between The Percent Of Maltose Sugar In The Malt Wort And The Characteristics Of The Malt, William Black

Bachelors’ Theses

Interest in this problem was brought about through working with malt in a malting laboratory. The curiosity of the author prompted research along the lines herein explained and a correlation between the amount of maltose in a malt wort and other variable factors explained in the following chapters was sought.

There has been a great deal of work done in the malting field which adapts itself readily to organic research. The chemistry of malt and malt products has arrived at a state where regular standard analysis can be applied. However, the research possibilities are practically unlimited and this work done …

A Biochemical Study Of Colloidal Sulfur., Gertrude L. Hendershot

Electronic Theses and Dissertations

No abstract provided.

A Study Of The Temperature Of Gelation And Solubility Range For Paraffin Waxes In Several Solvents, Stanley Francis Gebarski

Bachelors’ Theses

In organic literature and text books a certain melting point of paraffin is taken as indicating a certain range of paraffin hydrocarbons and the discussion terminated at that point.

A Comparison Of Ths Digestive Powers Of Trypsin And Papain On Casein And The Effect Of Certain Mild Antiseptics On These Powers, Joseph E. Steker

Bachelors’ Theses

The purpose of this thesis is to study the effect of certain mild antiseptics, such as Benzoic acid, Boric acid, salicylic acid, Phenol, Cresol, Thymol, on the digestive action of the enzymes Trypsin and Caroid (papain). A thorough perusal of the literature reveals only a small amount of data dealing with the influence of common antiseptics on enzyme action. Because of the important uses of enzymes in industry and the need of antiseptics for protective action, this problem is of great importance. The author wishes to acknowledge the kind cooperation of Dr. John R. Koch, Head of the Department of …

The Vitamin D And Provitamin D Content Of Some Varieties Of Utah Wheat, Harold M. Nielsen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Cereal grains were known to be notably deficient in the anti-rachitic principle even before the discovery of vitamin D. Clinicians had associated a type of rickets of infancy, characterized by an over-weight, flabby, bowlegged condition, with a diet consisting mainly of cereals. Mellanby (1) in 1921 concluded that this type of rickets is induced by overfeeding with carbohydrates. He also showed in the same report, however, that oatmeal, although it contains less carbohydrates than the other grains tested, possesses a special tendency toward rachitogenesis.