Biology 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.

Anther Development In A Male Sterile Line Of Corn, Richard J. Vogl

Bachelors’ Theses

Production of viable pollen through growth and differentiation of the anther appears to depend on the interaction of the tapetum and sporogenous tissue. Very little is known about the nature of this interaction. One way to approach this problem is to study the development of the anther in cases where no viable pollen grains are produced. Highly inbred lines of male sterile corn which are completely pollen sterile have been obtained and are available for study.

An Improved Technique For The Demonstration Of Tissue Lipids, Bryan G. Hoerl

Master's Theses (1922-2009) Access restricted to Marquette Campus

Progress in science frequently depends upon proper tools to demonstrate, enhance, integrate, substantiate or refute contentions. Among the means that make possible the advance of biological science is histological technique. Improved microscopic procedures result from a constant refining process and the search for new methods. To merit the adjective "improved" a new or refined technique must display a superiority to similarly employed processes. Such superiority might be shown by its speed, economy, practicality, ease or faithfulness of reproduction, or same other attribute. This paper portends to present an improved technique for the demonstration of tissue lipids .

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 …

The Saponification Of Esters, Robert Delong Sullivan

Bachelors’ Theses

The kinetics of chemical reactions has always been a very intriguing subject. It is the tool by which the mechanisms of chemical reactions are elucidated. Upon it partly rate the advisability of utilization of a particular reaction for industrial purposes. From it the field or catalysis has sprung. Chemical kinetics. is concerned with all branches of chemistry. Conversely, all branches of chemistry have an interest in it.

This thesis will attempt to do two things. First, the order, specific rate constant, and the energy of activation will be determined from the saponification of several esters. second, the introduction will cover, …

Microradiography With Biological Specimens, Arthur D. Wellman

Bachelors’ Theses

Microradiography is a technique in which X-rays are directed through a very thin specimen onto a fine-grained photographic film and the image examined under magnification. It has been used chiefly as a supplementary tool in industrial analysis of metal structures, and even in this field has attained prominence only within the past decade. Its usefulness is limited to fine structures (except where minute flaws or impurities are to be examined in a material), and its success is limited by the degree of clarity in the radiograph to be magnified.

A Study Of Saponification Rates As Characteristic Of Esters, Thomas F. Mitchell Jr.

Bachelors’ Theses

The saponification of esters has been the subject of considerable study, and the technology of manipulation of the reaction well defined. As a result, the reaction has become a quantitative standard for ester analysis. However the comparison of the rates of this reaction with various esters as charaeteristic of them has received little consideration compared to the course of the reaction. The work of Mr. F. E. Adler on the adaptation of fat constants to waxes suggested the problem. The thesis will attempt to ascertain any significant differences in the saponification rates of various esters with regard to their characterization.

The Chromosomes Of The Yeast Cell, Donald William Penn

Bachelors’ Theses

Saccharomyces cerevisiae has long been a fungus of economic importance in the baking and beverage fields. A large amount of research has been done on this yeast cytologically and biochemically. However, due to its small size and difficulty in staining, the cytology of the yeast cell remains somewhat in question. Chromosomes and division figures have been demonstrated by several workers, but there still remain sharp differences of opinion as to the nature of the nucleus. Recent work on the genetics of yeast has shown evidence of chromosome division similar to that occurring in higher plants and studies of linkage have …

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 Historical Study Of A Wilt Disease Of Chrysanthemums, Eugene Constantine Gasiorkiewicz

Bachelors’ Theses

This thesis is the result of research at Marquette University on Chrysanthemums for the past year. The specific problem was to study the development of the pathogen, Fusarium conglutinans Wr. var. callistephi Beach, which was the cause of serious infection of chrysanthemums. This treatise covers the procedure and methods used in the study.

Fusarium Conglutinens Variety Callistephi, Beach And Its Effect On The Chrysanthemum, Mary Heimick Palmer

Bachelors’ Theses

This thesis is the result of extensive research for the past year at Marquette University on Chrysanthemums. In particular, I refer to a specific problem, that of an attempt to ascertain with certainty the cause of a serious infection of Chrysanthemums. This treatise covers the procedure and methods used in discovering the actual pathogen, and my reasons for believing that this particular pathogen is Fusarium conglutinens variety Callistephi.

A Cytological Study Of The Salivary Gland Chromosomes Of The Attached-X Variety Of Drosophila Melanogaster, Jack Schull

Bachelors’ Theses

The detailed study of -the salivary chromosomes of the Diptera has been of great importance in substantiating cytologically the theories of genetics. A noteworthy example of the importance of cytological study is the non-disjunctive phenomenon which has occurred on at least several occasions in the strain of Drosophila melanogaster. Bridges (1913) was the first to report nondisjunction of sex chromosomes which was an important confirmation of the chromosome theory. L. V. Morgan (1922) used the cytological study of the germ cells of Drosophila melanogaster to prove that there was no disjunction of the sex chromosomes in the attached-X strain.

A Comparison Of The Autonomic Nervous System Of The Cat And The Pigeon, William P. Mccarthy

Bachelors’ Theses

The purpose of this thesis is to describe the autonomic nervous system of the cat and pigeon and to compare them as to their structure. This comparison will consist in noting the differences and points of similarity between the two animals. The autonomic nervous system of the cat is more complex than that of the pigeon and for that reason the comparison will consist in pointing out the parts of the autonomic nervous system present in the cat, but which are not found in the pigeon. In noting the points of similarity only the most important will be treated.

The Anatomical Differences Of The Tubers Of The Genus Dicentra, June E. March

Bachelors’ Theses

Gray (1878) described a number of the subterranean modifications of the stems. These can be distinguished from the roots since they produce regular buds and scale leaves.

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 Renal Vascular Supply In The Domestic Cat, Elizabeth Rosen

Bachelors’ Theses

Studies on the normal and abnormal vascularization of the renal vessels in the domestic cat (felis domestica) indicate the frequency of anomalies that occur, but in most of the studies it is the inferior vena cava that is most often recorded. Among the occasional references to several renal veins or arteries we have Huntington and McClure, Elmer Butler, Gaylord Bates, William Darrach, and C.H. Fortune. Yet no study seems to have been made of individuals of any particular class. A superficial observation seems to indicate a large number of cats used in the laboratory had multiple renal veins. Hence a …

The Stomatal Behvior Of Begonias And Its Relationship To Infection By Xanthomonas Begoniae, Eugene David Kitzke

Bachelors’ Theses

A leaf spot disease of begonias caused by a bacterium has been under observation and study at Marquette University for nearly a year. It brings up many interesting questions which need to be an­swered before the investigators can fully evaluate and determine correctly the relationships of this organism to the Begoniaceae. One of the questions, which has come up, was the problem of the mode of entrance. It is the purpose of this paper to deter­ mine the relation of the stomata to infection.

Histological Study Of The Small Intestine Of The Common Green Snake, Thamnophis Sirtalis, Robert George Stineman

Bachelors’ Theses

Although much work has been done histologically with the vertebrates, very little seems to have been done on the intestinal tract of the reptile. This is especially true of the snakes, despite the abundant sources of material. Reptiles are one of the first classes of vertebrates in which there is a distinction made between small and large intestine. Histology textbooks devote only a few lines to the histology of the reptilian small intestine. For this reason it seems that it would be worthwhile to make a detailed study of that portion of the intestinal tract immediately distal to the duodenum …

The Histology Of The Digestive Tract Of The Common Green Snake, Thamnophis Sirtalis 3. Esophagus, Janice Jean Mcfarlane

Bachelors’ Theses

This is the third in a series of investigations of the comparative histology of the digestive tract of Thamnophis sirtalis, the common green snake. Comparatively little recent work of this nature upon any of the class Reptilia, and especially upon the order Ophidia, seems to have been undertaken. Kendall(1940) makes no mention of Ophidia, but discusses briefly the digestive system of the lizard, limiting his treatment of the esophagus to a few lines. Cole (1941) has an equally short and general discussion of the digestive system of Thamnophis sirtalis, again devoting but a brief space to his discussion of the …

Atypical Conditions Of The Inferior Vena Cava, Mary F. Reagan

Bachelors’ Theses

Extensive dissection of various mammalian forms, expecially of man, the rabbit, and the cat has led to a recognition of a certain vascular pattern of the inferior vena cava which is typical for the group, It occurs so consistently that the occasional specimens which differ from it are of interest because of both their ontogenetic and phylogenetic significance.

The Feulgen Reaction Applied To Various Platyhelminthes And Small Ascarid Worms Mounted In Toto In Balsam Oil, Louise R. Russort

Bachelors’ Theses

The problem involved in this experiment was the application of the Feulgen Reaction to a number of flatworms and small ascarid worms, in an attempt to ascertain whether or not a practical staining technique, (showing clear differentiation of nuclear material, etc., from the surrounding cuticle and cytoplasm) -- may be developed, by staining and mounting them in toto. The Feulgen Reaction was used in this experiment, not as a specific indicator for thymonucleic acid, but rather as a cytological stain. Some attention will be focused upon the reaction's specificity, however, in the following discussion of the development of the reaction …

Some Technique Methods For Preparing Slides Of The Paramecium, Irene Padley

Bachelors’ Theses

Du Jardin (1835) was probably the first to recognize in protozoa, living substance. To this substance, he applied the word sarcode. In 1861, Max Schultze expressed the idea that sarcode and protoplasm are the same thing.

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 …

A Cyto-Genetical Study Of Habronbracon Juglandis, Joan Meyer

Bachelors’ Theses

A cyto-gentical study was attempted of the males of the Ichneumonoid wasp Habrobracon juglandis (ashm.) The larval of this wasp are parasitic on the larval of a flour moth Ephestid kuekniella (zeller). The males of this wasp were disected and slides were made of the testes. Different staining techniques were used in order to determine which ones would give the best results.

The Development Of Bone In The Chick Embryo, Helen M. Koelsch

Bachelors’ Theses

The day by day development of the bone in the chicken embryo as determined by the fixing and staining of embryos for each twenty-four hour growth period during the time of greatest skeletal development, is the subject of this paper. The stage in the embryological history of the chick during which the most important phases of bone development occur was determined to be the period between the seventh and the sixteenth days of incubation. It is therefore the purpose of this investigation to give an account of the growth and development of the bones of the ordinary domestic fowl as …

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...

The Effect Of Salt Water On The Pituitary Gland And The Reproductive Glands Of The Male Rat, Matthew J. Kennedy

Bachelors’ Theses

In this thesis a study was made of the histology of the reproductive system of a male, buff rat.