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The Isolation, Cultivation and Testing of Organisms Anatagonistic to a Streptomycin Resistant Strain of Pseudomonas Aeruginosa
The problem of finding an efficient antibiotic against Pseudomonas aeruginosa which can be used in the clinical treatment of genito-urinary tract infections resistant to treatment by streptomycin has not yet been solved. Therefore, this problem has consisted of first, the acquisition of possible inhibitors of the streptomycin resistant strain of Pseudomonas aeruginosa; second, the selection and identification of those which show a marked antagonism toward this organism; third, the determination of the antibiotic spectra of the inhibitors; fourth, the determination of whether the streptomycin resistant strain could also acquire a resistance to the antibiotic produced by its inhibitors; and last, an attempt to evaluate the therapeutic possibilities of the antibiotics demonstrated.
Date:
1951
Creator:
Banister, Jack Warren
System:
The UNT Digital Library
The Antibiotic Effect of Pigmented Actinomycetes
This thesis attempts, first, to correlate pigmentation of actinomycetes with the degree of antibiocity; second, to establish the most favorable means of producing a rich luxuriant pigmentation in the individual organism studied by enriching favorable media with specific types of proteins and amino acids.
Date:
1951
Creator:
Cichon, Casimir Joseph
System:
The UNT Digital Library
Age, Growth, and Food Habits of the Largemouthed Black Bass (Micropterus Salmoides) and the Spotted Bass (Micropterus Puctulatus SSP) in North and East Texas Lakes
This study is based on the examinations and analyses of 388 largemouthed black bass (Micropterus salmoides) and 118 spotted black bass (Micropterus puctulatus ssp.) which were collected over a period of three years from 9 lakes in the North-Central and East Texas areas. The results should show the following: (1) the average age of the black bass in each of the nine reservoirs in Texas; (2) the growth rate of the bass in these reservoirs; (3) the feeding habits of the bass in all reservoirs studied; (4) a comparison of the growth rates of the largemouthed and spotted basses; and (5) a comparison of the growth rates of bass from Texas and Oklahoma.
Date:
1950
Creator:
Cooper, William A.
System:
The UNT Digital Library
A Correlation of the Vegetation with the Soil Types of Haskell County, Texas
The problem has consisted, first, of a mapping of the soil types present in Haskell County; second, a collection of the existing vegetation of each soil type; third, an identification of the vegetation collected and observed; fourth, and lastly, a comparative study of the vegetation of each soil type in an effort to establish a correlation between the vegetation and the soil type.
Date:
1950
Creator:
Tyson, Josiah William, Jr.
System:
The UNT Digital Library
The Inhibition of Fungal Contaminants in Cultures of Mycobacterium Tuberculosis
The problem of conatmination in culture media for Mycobacterium tuberculosis has not been solved completely, and for this reason the work herein presented was carried out. In this work experiments were made testing the effect of actidione in inhibiting certain ones of the higher fungi.
Date:
1951
Creator:
Wright, Noble M.
System:
The UNT Digital Library
The Adaptability and Present Status of Andropogon Ischaemum L. in Denton County, Texas
This investigation has been made with reference to the adaptability of Andropogon ischaemum, King Ranch bluestem, to various soils, various slopes, and various erosion conditions in Denton County.
Date:
1951
Creator:
Belders, Floyd William
System:
The UNT Digital Library
A Grassland Evaluation of Eastland County, Texas
This investigation has had for its purpose the determination of first, all members of the Gramineae (Grass) family found in the county; second, the incidence of each species with the various types of soil; third, the grazing value of each species; fourth, the life span of the parent plants; fifth, the present grassland status; and sixth, the potentialities of developing desirable grassland.
Date:
1951
Creator:
Durham, Norman Nevill
System:
The UNT Digital Library
The Antibiotic Properties of the Oleoresins of Twenty-Five Common Garden Vegetables
The purpose of this problem is to determine the presence and extent of antibiotic materials as found in the oleoresins of a selected group of garden vegetables. The problem has consisted of, first, the collection and preparation of specimens of twenty-five commonly used garden vegetables; second, the extraction of the oleoresins from these; third, the determination of the inhibitory and other effects of these oleoresins against several strains of selected gram-positive and gram-negative bacteria; and fourth, the evaluation of the potentialities of these oleoresins with regard to their future use as medicinal prophylactics and therapeutics.
Date:
1951
Creator:
Ennis, Arthur F.
System:
The UNT Digital Library
The Isolation and Identification of Micro-Organisms from Spoons of Public Eating Establishments in Denton, Texas
This investigation deals with the isolation and identification of bacteria found on selected samples of spoons in various eating establishments in the vicinity of Denton, Texas.
Date:
1949
Creator:
Rugeley, Sarah Rose
System:
The UNT Digital Library
The Effects of Heparin on the Development of Resistance to Antibiotics by Staphylococcus Aureus
Since heparin combines with some antibiotics to decrease the toxicity of the antibiotic to the patient, the purpose of this investigation is to determine whether it has any effect upon the development of resistance to antibiotics by Staphylococcus aureus.
Date:
August 1959
Creator:
Blanton, William George
System:
The UNT Digital Library
Some Relationships between Certain Aquatic Actinomycetes and Bacillus Cereus
The purpose of this investigation is to determine if there was a metabolic relationship between the actinomycetes and the gram positive, spore-forming becilli in surface waters, and, if such a relationship was evident, to relate the association to the disappearances of typical actinomycete tastes and odors from waters.
Date:
August 1963
Creator:
Hoehn, Robert Campbell
System:
The UNT Digital Library
Autoimmunity of Periodontitis
The purpose of this investigation is to determine if auto-antibodies are demonstrable in inflammatory periodontal disease using methods other than those of Novotny.
Date:
August 1963
Creator:
Miller, Katy Jo Coyle
System:
The UNT Digital Library
Effects of pH and Substrate on Growth of Escherichia Coli and Pseudomonas Aeruginosa in Mixed Continuous Culture
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
System:
The UNT Digital Library
Colonial Variations of a Mucoid Strain of Staphylococcus Aureus
It was the purpose of the present investigation to demonstrate the selection of a variant of one strain of Staphylococcus aureus by altering certain environmental factors, and to study that variant as to biochemical activities and capsule formation.
Date:
June 1963
Creator:
Liston, Winston Bryan
System:
The UNT Digital Library
A Serological Study of the Aerobic Actinomycetes
The purpose of this work is to find an adequate immunizing procedure for aerobic actinomycetes and a suitable method of testing for antibodies produced. Some of the factors which influence the antigenicity of the organisms, and the demonstration of specific antibodies have been included.
Date:
August 1963
Creator:
Ferguson, James Kelton
System:
The UNT Digital Library
The Effect of Aging on the Respiratory Response of Rat Heart Tissue Slices to Metabolic Inhibitors
This investigation was undertaken to explore biochemical changes which may occur in heart tissue with age. In this connection, the cellular enzymes were of special interest.
Date:
August 1962
Creator:
Couch, Ernest F.
System:
The UNT Digital Library
Assimilation of Inorganic Nitrogen by Aquatic Actinomycetes
It was the purpose of this investigation to present laboratory data concerning the assimilation of inorganic nitrogen by the aquatic actinomycetes. The strains of aquatic actinomycetes under consideration represented a cross section of those currently under culture at North Texas State University.
Date:
August 1962
Creator:
Davis, Ernst M.
System:
The UNT Digital Library
Some Effects of X-irradiation on the Plasma Corticosterone, Adrenal Weights, and Differential Leukocyte Count in the Rat
The purpose of the present study was twofold: (1) to determine if X-irradiation can be considered a direct stress agent, and if so, to what extent it differs from other stressors; and (2) to further elucidate the role of the adrenal cortex in the radiation syndrome by determining the more immediate responses of this system to X-irradiation.
Date:
August 1962
Creator:
Gaugl, John F.
System:
The UNT Digital Library
The Effects of Certain Organic Compounds Upon the Bacterial Deposition of Ferric Hydroxide from Ferric Ammonium Citrate
This thesis studies the effects of certain organic compounds upon the bacterial deposition of ferric hydroxide from ferric ammonium citrate.
Date:
1956
Creator:
Papadopoulou, Polykarpia C.
System:
The UNT Digital Library
A Spectrographic Study of a Selected Group of Actinomycetes
This thesis is a spectrographic study of a select group of actinomycetes.
Date:
1956
Creator:
Taylor, Robert Dean
System:
The UNT Digital Library
The Relationship of Light Wave Length to Tissue Differentiation in Sunflower Seedlings
The purpose of this study is to determine the relationship of light wave length to tissue differentiation in sunflower seedlings.
Date:
1956
Creator:
Wilson, Bobby Eugene
System:
The UNT Digital Library
An Investigation of Methods for the Concentration of Chemical Compounds Produced by Actinomycetes and Their Relation to Tastes and Odors in Municipal Water Supplies
It is the purpose of this investigation to improve upon techniques to enhance the taste of municipal water and attempt to devise one that could desorb the compounds from carbon in an unaltered state. It was decided that the odor character would be the criterion used to decide if the eluted compounds were the same as those in the raw water.
Date:
1957
Creator:
Brown, Jerry H.
System:
The UNT Digital Library
Effect of Immune Guinea Pig Serum and Cortisone on AKR Mouse Leukemia
This work is concerned with an attempt to clarify the role of cortisone in both the immune complement response and the progression of mouse leukemic tumor.
Date:
1958
Creator:
Elliott, Arthur York
System:
The UNT Digital Library
A Study of Selected Factors Related to Permanency in Science Teaching
The purpose of this study is to gather information related to some factors which are considered to be characteristic of science teaching; to attempt to identify some elements of permanency in science teaching; and to analyze some relationships between the results of the above two criteria with the view of establishing some factors which may be useful as predictors of permanency, or indicative of patterns of permanency, in science teaching.
Date:
August 1958
Creator:
Lovelace, Allen J.
System:
The UNT Digital Library