Life Sciences Commons^™

Bulletin 200 - Trees And Shrubs Of The Campus And East Central Illinois, Ernest Stover

Eastern Illinois University Bulletin

The keys to the trees, shrubs and vines have been revised

in an attempt to make them more usable for the beginning student.

The keys to several of the genera, pines, oaks, ashes, willows,

etc., have been rewritten and species added that were not

in the previous printings.

The key to the trees in winter has been added hoping that it

will be helpful to both teachers and students. The identification

of trees without their leaves during the winter is not only interesting

but useful.

The identification of plants is but one phase of their study.

Botany is the basic …

The Use Of X-Ray And Nitrogen Mustard To Determine The Mitotic And Intermitotic Times In Normal And Malignant Mammalian Tissues, William Richard Widner

Biology ETDs

The relative times involved in the various phases of cell division is basic to problems of tissue growth, but the quantitative relation of mitotic and intermitotic times have received very little attention until recently. Even data on the quantitative comparison of mammalian growth rates are very limited. The rate of growth of any tissue is directly proportional to the number of new cells added to the tissue over and above the number of old cells being constantly destroyed.

The present study was undertaken: (1) to determine which of these two factors is responsible for differences in the mitotic index seen …

Respiration Of Kidney Slices From Adrenalectomized Rats Treated With Adrenal Cortical Hormones, Miriam Landew

Biology ETDs

In view of the fact that there obviously are metabolic and oxidative disturbances in the kidney caused by adrenalectomy, this investigation was attempted in an effort to obtain information concerning the following:

(1) Whether the rate of oxygen consumption of rat kidney tissue slices is a function of time; to determine whether the decreased metabolic function occurred immediately upon adrenalectomy or if an initial rise and then a falling off took place, as seemed to be indicated in the work done by Butcher (1943).

(2) Whether cortisone or desoxycorticosterone had the ability to alter oxygen consumption of kidney tissue in …

The Effects Of Epinephrine And Nor-Epinephrine On The Blood Picture In The Rat, George H. Gass

Biology ETDs

It has long been known that various stresses and stimuli elicit responses in the animal body, and since the stating of Cannon's "emergency function" (1929), the adrenal medullary hormones have been credited with exciting many of the instantaneous responses to the animal body.

The experiment was designed to determine: (1) whether nor-epinephrine has effects on the blood elements different from those seen after epinephrine treatment; (2) whether the dosage of hormone employed will affect the type of response obtained; and (3) whether the demedullated rat responds to the adrenal medullary hormones in the same pattern as the intact rat.

A Botanical Study Of The Trees And Shrubs Found On The Campus Of Ursinus College, Daniel Burnside

Biology Honors Papers

This ten page thesis gives a report of progress made in taking a botanical survey of the Ursinus College campus. Samples from all trees and shrubs of different species were collected, classified, pressed, dried and mounted. Information for plaques was created as well as a map with tree locations and a painting of an aerial view of the campus with trees plotted.

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 …

Variations In The Anteriomesenteric Axis Of The Arterial Blood Supply Of The Frog, Adelle V. Michels

Biology Honors Papers

This 10 page thesis attempts to determine if phylogenetically any comparison is possible between variations in the blood supply of the anteriomesenteric axis in frogs and in humans.

Molds And Bacteria In House Dust And Furniture Stuffing, Mary Ann Swaebly

Journal of the Minnesota Academy of Science

No abstract provided.

The Development Of Two Apparatuses And Techniques For The Measurement Of The Basil Respiration Rate Of A Bull Snake At Various Temperatures, Rowand R. Chaffee

Biology ETDs

The literature is extensive with respect to mammalism physiology, but extremely sparse concerning the reptilian physiology. According to Cook (1949) very little comprehensive work concerning the fundamental aspects of reptilian physiology has been done since Benedict's work in 1932.