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A Bacteriological Survey of a Freshwater Reservoir

Description: In this study organisms that can be subcultured from lake water, using a prescribed procedure, limit, to an extent, the population, or portions of the population, that can be monitored. In essence, what is taking place is that a set of conditions is set forth and a study is made of the bacteria that will grow under these prescribed conditions.
Date: January 1968
Creator: Stiles, John Clayborn
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Liver Glyoxalase Activity in Normal Mice and Mice with Lymphosarcoma

Description: It is the purpose of this investigation to determine the variation of glyoxalase activity in liver of normal mice and in the liver of mice bearing a lymphosarcoma and to compare the glyoxalase activity of the lymphosarcoma with values previously reported in the literature for other tumor types. Further, if there is indeed a variation in liver glyoxalase activity between normal and tumor-bearing mice, it will be compared to the variation in the activity of two other enzymes present in liver tiss… more
Date: January 1968
Creator: Strzinek, Robert A.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Effects of n-Decenylsuccinic Acid (n-DSA) and It's Monomethyl Ester (m-MDSA) on Water and Ion Flux in Isolated Roots

Description: The purpose of this study was (1) to measure the changes in water flux in isolated roots exposed to n-DSA and its mono-methly ester (m-MDSA) using a photometric technique in the absence of an externally applied suction and (2) to measure the flux of Na and K in similarly treated roots using a flame photometric method.
Date: January 1969
Creator: Teng, Yao-sheng
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

An Ecological Survey of the Reptiles and Amphibians of Wise county, Texas

Description: The purpose of this study was to record the relationships between the reptiles and amphibians of Wise County and the ecological subdivisions of the area. Wise County was chosen because of the heterogenity of the area and because of its proximity to other counties which have been previously and similarly studied.
Date: January 1970
Creator: Welch, Donald A.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Microbiotic Cycles in Lake Hefner

Description: The purposes of this paper are 1) to determine the microbiotic cycles which occur in Lake Hefner in order to form a basis for ascertaining the effects of future additions of evaporation control chemicals on the biological life of this reservoir, and 2) to make a generalization as to the microbiotic cycles which might occur in Southwestern reservoirs.
Date: January 1966
Creator: Allison, Richard C.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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An Investigation of Gas Chromatographic Separation of Tastes and Odors Produced by Actinomycetes

Description: It is the purpose of this thesis to evaluate a few selected gas chromatographic materials for the separation of odorants produced by an actinomycete culture under laboratory conditions. Also to compare the results obtained with concentrated solutions of a surface water containing similar odors under natural conditions.
Date: January 1965
Creator: Matlock, James K.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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A Rapid Modification of a Standard Disk-plate Antibiotic Susceptibility Test

Description: The objective of the work reported in this paper is one of a two-fold nature. The first objective is to develop a disk-plate sensitivity test that is more rapid than that of existing methods. The second requisite is that the materials, techniques, interpretation, and reporting of results be the sane as those required for the disk-plate method described in the Difco Manual.
Date: January 1955
Creator: Jackson, Leslie Warren
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Some Effects of X-irradiation on Oxygen Uptake and Serotonin Levels in Rat Brain Tissue Slices

Description: The aim of this study is to determine the changes in respiration in tissues from specific brain areas X-irradiated in vitro using a direct monometric procedure also to determine the differences in radiosensitivity of specific areas in the brain as reflected by changes in oxygen uptake and to shed some light on the nature of the biochemical lesions in nerve tissues brought about by ionizing radiation.
Date: January 1966
Creator: Hines, John F.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Extracts of Garden Vegetables as Sources of Nutrition for Various Microorganisms

Description: This study was undertaken in order to determine whether the extracts of common garden vegetables could be incorporated into simple, economical culture media which might be used for the growth and cultivation of at least some of the more commonly used microorganisms.
Date: January 1954
Creator: DuBois, Kenneth Guinn
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The Cultural, Physiological, Morphological and Chemical Characteristics of an Actinomycete from Lake Waco, Texas

Description: The purpose then of this paper has been to expand our knowledge of these aquatic forms by investigating the cultural, physiological, morphological, and chemical characteristics of an actinomycete isolated from the water supply, Lake Waco, of Waco, Texas.
Date: January 1954
Creator: McCormick, William C.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Effects of pH and Substrate on Growth of Escherichia Coli and Pseudomonas Aeruginosa in Mixed Continuous Culture

Description: The express purpose for doing this project was to develop methods for the continuous culture of E. coli and P. aeruginosa as a mixed population, and to apply these methods in studying the effects of pH and substrate upon the growth of these two organisms in mixed continuous culture.
Date: January 1964
Creator: Cooper, Billy Howard
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Light and Electron Microscope Studies on the Chemotherapeutic Effect of a Combination of Dimethyl Sulfoxide and Hematoxylin on a Transplantable Lymphosarcoma

Description: Investigations concerning the cellular response of tumor tissue to treatment with dimethyl sulfoxide and hematoxylin have not been reported. To establish the response of neoplastic tissue and cells to this combination of agents, this study was undertaken to determine the effects of dimethyl sulfoxide and hematoxylin on a transplantable lymphosarcoma in mice.
Date: January 1970
Creator: Rogers, Thomas D., 1939-
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Some Effects of X-Irradiaion on the Adrenal Response to Hypothalamic Stimulation in Rats

Description: Exactly where in the hypothalamus is the adrenal-pituitary response to X-irradiation "triggered" or initiated? Moreover, does ionizing radiation act directly on specific centers in the brain or does it act indirectly via the production of some humoral agents? Finally, what role does the hypothalamus play in the radiation-syndrome? The purpose of the present study was to attempt to answer these questions by determining the effects of two stressor agents, X-irradiation and electrical stimulation … more
Date: January 1967
Creator: Agnew, Robert Laing
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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