Life Sciences Commons^™

Radiosensitivity Of Mice In Relation To Heightened Metabolic Activity During And Immediately Prior To Exposure To 220 Kv X-Rays, M. Rosalie Henneke

Bachelors’ Theses

The manner in which certain factors influence the susceptibility of protoplasmic systems to ionizing radiations is not as yet well understood. Of prime importance among these factors is metabolic rate; it has been demonstrated that there exists a definite re­lationship between metabolic level and the lethal effects of such radiations. At the outset it must be pointed out that there are two principal problems in this connection; that is to say, radiosensitivity can be studied in relation to metabolic rate prevailing during or subsequent to exposure. One of the most frequently used criterion of radiosusceptability is mortality rate.

Exposure To X-Radiation Of Localized Areas Of Mammalian Skin Conditioned To Different Levels Of Metabolic Activity, James A. Belli

Bachelors’ Theses

There appears to be an important relationship between the overall metabolic rate prevailing in a protoplasmic system at the time of exposure to ionizing radiations and the extent of the damage effected by such radiation. It is with this issue that the present investigation is concerned.

Radiation biologists and clinical radiologists are coming to realize the importance of this problem. This increasing interest has suggested several new avenues of approach to the radiobiologist toward the elucidation of the more subtle changes occurring in protoplasmic system s exposed to radi­ation. Clinical radiology has availed itself of certain evi­dence (in a yet …

Qualitative Identification Of The Components Of The Okra Pod Polysaccharide Fraction By Paper Chromatography, John Joseph Eisch

Bachelors’ Theses

The research or Dr. Hiram Benjamin of the Marquette University Medical School on the intravenous injection of an aqueous solution of' okra powder for ulcer therapy resulted in investigations concerning its suitability as a · p1asma extender. Transfusion trials on dogs were so encouraging that its potential as a human volemic was readily recognized.

Since such use would require detailed knowledge of the polysaceharide's constitution for toxicity and metabolic evaluations, research was needed to elucidate the nature or the polysaccharide macromolecule. Observing the lack of any reported data concerning okra, Dr. Kenneth Brown or the Biochemistry Department or the Marquette …

Study Of The Nuclear Behavior In The Basidia And Basidiospores Of Schizophyllum Commune Fries, Howard George Ehrlich

Bachelors’ Theses

Schizophyllum commune Fries is a member of the Hymeno­ mycetes. This genus has long intrigued mycologists because of the peculiar "spliit gills'' it characteristically possesses. For a long time, however, not much importance was attached to the fungus until it was reported from many parts or the world and its. pathogenicity as a wood-destroying agaric established. Despite these facts relatively little is known about the fungus. Perhaps the phase of development most completely described was the development of the "gills", Essig (1922). Because of the location of the hymenium and stipe attachment, Essig (1922) suggested that the fungus more properly …

An Adaptation Of The Feulgen Reaction For The Staining Of The Salivary Gland Chromosomes Of Drosophila, Herman C. Inlow

Bachelors’ Theses

The discovering of the genetic value of Drosophila salivary gland chromosomes by Painter, Heitz, and Bauer in 1934 posed a problem of technique to the microtomist that is still being improved upon and widened. The staining of these chromosomes fer better study and to determine their properties, both chemical and physical, has been the object of intense research. This paper is the result of my work in connection with this subject.

A Survey Study Of The Intestinal Worms And Ciliates Of The Hog (Suis Domesticas), John F. Crowley

Bachelors’ Theses

The purpose of this £survey study was to ascertain the variety and extent of intestional worm and ciliate parasites of hogs slaughtered in packing houses of the Milwaukee area.

The Effects Of Various Concentrations Of Vitamin B1 On The Growth Of Amoeba Proteus, Walter J. Bo

Bachelors’ Theses

Thiamin or vitamin B₁ was first isolated in crystalline form from rice bran by Jansen and Donath in 1926 . Windous, Tschesche, Buhkopf, Laquer and Schultz in 1931 isolated the pure vitamin B₁ from yeast and established the emperical formula - C₁₂H₁₇ON₄Scl.Hcl .

A Study Of The Tolerance Of Drosophila Melanogaster For Certain Chemicals Used In An Attempt To Produce Mutations, Marian L. Collins

Bachelors’ Theses

The problem of inducing mutations holds a fascination for the scientist because no one has as yet adequately explained the cause of mutations in nature. In attempts to solve this riddle, X-rays have been used most extensively to induce mutations, but because of the recent discoveries regarding the powerful effect of chemicals and fungi produced chemical compounds upon tropical disease-carrying insects, this field of experimentation is being reinvestigated in the hope of clarifying still undefined phases of the subject.

The purpose of this experiment was to determine the capacity of different types of chemicals to produce mutations, the mutation rate …

Making Permanent Mounts Of Fern Gametophytes, Gail Seeraphine Barczak

Bachelors’ Theses

One of the botanists first to grow fern gametophytes from spores whicch were sown on moist clay was Farlow (1874), a student of the famous botanist, DeBary, professor of Botany at the University of Strassburg in Germany. Farlow sowed the spores of Ptteris cretica var. albo-lineata on moist clay placed into small flower pots. Watering was accomplished from the top. There was no sterilization of the culture medium. The gametophytes of this fern were also grown under the same conditions by DeBary (1878). Steil (1919a) grew the prothalli of Ptteris sulcata and Ptteris cretica var. albo-lineata in the same manner …

Histology Of The Stomach Of The Common Green Snake, Thamnophis Sirtalis, Lois Doerfler

Bachelors’ Theses

This is another in the series treating the histology of the digestive tract of the reptile. Very little comparative work has been done on the digestive system as a whole and less attention has been paid to the stomach. Kendall (1940) and Cole (1941) devote a slight discussion to a general description of the reptilian stomach. The following report is a more detailed microscopic investigation of the anatomy of the stomach of one of the common species of snakes...

A Study Of The Respiratory System Of The Sparrow (Passer Domesticus), Ben Peter Arnowitz

Bachelors’ Theses

The respiratory mechanisms of birds, unlike that of mammals, are definitely adapted to the function of flight. Because of this added adaptation, we should expect, therefore, some morphological and perhaps even embryological, physiological, and histological differences. An example of a morphological difference between birds and mammals is the intricate system of air-sacs that are present in birds. This remarkable feature is probably the reason why birds are able to fly as they do.

In this thesis the writer has used the sparrow (Passer domesticus) for the basis of his experiments. This particular bird was chosen in preference to …

An Electrophoretic Determinatin Of The Properties Of Methacrol M.E. By The Use Of A Capillary Cross-Arm "U" Tube, Richard Reiland Bains

Bachelors’ Theses

this research was undertaken primarily to discover the use of a capillary cross-arm "U" tube in the determi­nation of the electrophoretic and other electrical proper­ ties of a plastic emulsion.

The primary objective was to determine the isoelectric point of the emulsion and also the optimum pH or electro-endosmotic motion.

The secondary and distant objective was to note when, how, and it any coherent plating on the electrodes took place.

The Influence Of Dowicide A On Drosophila Melanogaster, Helen Mary Dore

Bachelors’ Theses

Drosophila melanogaster plays a far greater part in science than man at first realizes. A study of their heredity makes it possible to develop laws of human here­dity and with this knowledge, thus provide for the better­ment of mankind. Considerations which lead to the choice of the fruit fly, Drosophila melanogaster, in experimentation are briefly the following: (a) its small size which makes, it convenient to keep; (b) its short life cycle; and (c) the ease with which it can be cultivated. Since fruit flies are so important to science, it follows that it is also important that a …

The Comparative Difference In Skeletal Structure Of Two Strains Of The Mus Musculus, Pasqual A. Capitanelli

Bachelors’ Theses

Father Raymond H. Reis, S.J., and Robert A. Littleford, Ph.D., both of the staff of Marquette's University Zoology department, while working upon an experiment in the feeding to the common house mouse, "Mus Musculus", noted that in the two strains of mice that were used, the white variety of mouse was a trifle larger than the black variety, but that their weights were identical. They suggested the possibility of a skeletal difference that seemed to be most prominent in the head of the mice.

Inbreeding And Selectional Studies Of Drosophila Melanogaster, Marian Cecilia Dellers

Bachelors’ Theses

The eyeless gene of Drosophila, which causes in general a reduction of the size of the eye in the adult fly, does not seem to produce a constant effect. Thus among the offspring of one pair of flies many phenotypes will be found, flies with reduced eyes of various sizes and flies with one or both eyes completely missing. The purpose of this series of experiments was to investigate the genetical and environmental factors involved in the modification of the results produced by the eyeless gene and to determine their relative importance, especially through selective breeding in the direction of …

Culture Media For Drosophila, Joseph L. Himmelreich

Bachelors’ Theses

In the work with Culture Media for Drosophila the author was interested in producing a medium that was not expensive, easy to prepare, and one that would produce mature and hardy flies.

The Effect Of Sulfanilamide On The Spleen, Kidney, And Erythrocytes Of The Albino Rat, Paul M. Bergen

Bachelors’ Theses

Sulfanilamide today is recognized somewhat as a magical drug since it is being used in the cure of so many different diseases. Therefore it was my desire to experiment with it. The problem which the author has endeavored to solve has been, as the title implies, just what effect the drug has upon the blood, the cells of the spleen and the kidney. It has been my aim to verify or refute the findings of experimenters who have delved in the field previous to my experimentation, l and to attempt to give some explanation for the findings.

The Effect Of Irradiation Upon The Fecundity Of Drosophila Melanogaster, Arnt M. Erickson

Bachelors’ Theses

Many animals and plants are being subjected to irradiation of various types with the object of discovering the effect upon the development of the organism. This type of experimentation is still in its initial stages. The considerations which led to the choice of the fruit fly, Drosophila melanogaster, for the investigation were briefly the following: (a) its small size which insures that all parts of the ~ animal will receive approximately equal exposures to the radiations; (b} the fact that it passes through a pupal stage during which it may be conveniently manipulated in such irradiation work; (c) the …

The Effect Of Vitamin B1 On The Growth Of Paramecium Multimicronucleatum, Irene Alma Herbst

Bachelors’ Theses

The effect of Vitamins on the growth and development of plants and animals has created a great deal of interest in the scientific world.

The Direct Action Of Ovarian Follicular Hormone On The Uterus And Appendages Of The Mouse, William L. Backus

Bachelors’ Theses

The investigation dealt with the direct action of ovarian follicular hormone, ESTROLIN, on the uteri, the oviducts, and the ovaries of normal female albino mice.

A Study Of The Development Of The Mitosis And The Chromosome Count In Tropaeolum Majus L., Kenneth B. Eggert

Bachelors’ Theses

Toranosuke Sugiura (1926) published a study on Meiosis in Tropaeolum majus L in which he found the number of chromo­somes in the pollen mother cells to be 14. In the post­ synaptic phase, there were four aired chromosomes forming long rods. The other univalent ones formed shorter rods of irregular form.

Normal Variation In Growth Rate Of Mice, Helene Gysin

Bachelors’ Theses

Although there has been extensive research carried on with growth variations of rats, there has been comparatively little done on this subject with respect to mice. Stefan Kopec (1938) carried out an experiment in which 24, 000 daily weights were taken of 3 female and 49 male black - and - white - spotted, white, and lilac mice, all sexually mature. He found that males showed non-cyclic weight increase with irregular fluctuations, while the females showed marked cycles of weight change. These
cycles appeared at the time when sexual maturity was attained; decreased in intensity with age, and ended with …

The Thorax Musculature Of The Tenebrio Molitor, Francis L. Boyle

Bachelors’ Theses

Very little, if any, work has been done on the thorax musculature in · the larvae stage of insects. The work that has been done has been confined mostly to the muscles of the abdominal region. From this work it has been found that extraordinary differences in muscle pattern occur often between larvae and adult stages of the same species. Since the muscles of all insects are more or less comparatively the same, what is true of one .will be generally true of another. There may be slight variations found between the abdominal segments and head segments but these differences …

The Skull Of Squalus Acanthias, Allan J. Blake

Bachelors’ Theses

The spiny dogfishes (Squalus) inhabit the North and South temperate zones; they have no anal fins; the points of the small teeth are deflected laterally so ·chat the inner margin forms a cutting edge. Squalus Acanthius is very abundant in British waters and off the Atlantic coast of North America. This group has five gill openings and two dorsal fins each of which is typically preceded by a spine. It reaches a length of four feet, and is a great nuisance to fisherman, eating fish and getting caught in lines or in nets. They are all viviparous. Many …

A Cytological Study Of The Central Body In Oscillatoria Formosa And Oscillatoria Limosa, Ruth Joanna Dornfeld

Bachelors’ Theses

No abstract provided.

The Fresh-Water Sponges Of Wisconsin, James Russell Neidhoefer

Bachelors’ Theses

The fresh-water sponges were observed but not recognized as animals at a very early period. The early investigators thought they were plants; later workers, colonial protozoa. In 1696, Leonard Plukenet first made public mention of them; and later, in i745, Linnaeus described them as Spongia and made mention of their, "globuli". After Linnaeus the term Spongia changed many times until, in 1816, Lamarck introduced the generic name Spongilla.

The Ovary Of The Frog, Wyman O. Bergner

Bachelors’ Theses

All living organisms, under proper conditions, are able to reproduce an organism of its own kind by the natural function of its reproductive system. Except in such cases where reproduction is assexual, there are always tow individuals, male and female, which produce two elements called the ovum and spermatozoa. In the vertebrate kingdom, the sperm unites with the ovum to form the new individual. This fertilized ovum is commonly referred to as the zygote, which produces the embryo from which the new individual is ultimately formed.

In this work the ovary is studied from several viewpoints: 1) anatomical; the size, …

Pancreas Of The Frog, Henry C. Boyer

Bachelors’ Theses

The pancreas has long been a subject of interest and speculation. It forms a favorable object for the study of secretory cells in general and has been used by various investigators who have studied the minute structure of the pancreas cell in relation to the secretory processes. Besides being a very active digestive gland it is the source of insulin; so that it is not surprising to find a vast amount of literature on the double function of the pancreas in general.

Development Of Tissues Of Aesculus Hippocastanum, L., Robert E. Esser

Bachelors’ Theses

A few horse-chestnuts carried to the University one day in the fall as the nuts ripened, supplied some of the materials for this thesis. The work commenced at once with the gathering of a large supply of seeds. Attempts were made to reach the literature on the subject but failed, because, apparently there has been no work done on this plant in recent times as is shown by an almost complete absence of literature on the subject of the anatomy. Hence, nearly all references will be of a general nature.

A Study Of The Muscles Of The Arm And Upper Shoulder Of The Cat, Joseph Andrew Arena

Bachelors’ Theses

The work undertaken in this thesis is a study of the muscles of the shoulder and upper arm of the cat, special attention being paid to the origin, insertion, relations, action, innervation and blood supply of the muscles.