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The Incidence of Colon Bacteria on the Hands of North Texas State Teachers College Students
This investigation has for its aim the determination, in a measure, of the degree of personal sanitation existent among students at North Texas State Teachers College, Denton, Texas.
Date:
1946
Creator:
Hooper, Eugene
System:
The UNT Digital Library
Developing Range Condition Classes for the North Grand Prairie of Texas
This paper deals with a study of the ranch lands in Cooke, Wise, Denton, and Montague Counties, which are located in the North Grand Prairie of Texas.
Date:
1946
Creator:
McConnell, Mack
System:
The UNT Digital Library
The Age, Growth, and Food Habits of the Lake Dallas White Bass, Lepibema Chrysops (Rafinesque)
This study was made to secure certain new information concerning the food habits and growth of the white bass, Lepibema chrysops (Rafinesque), which is quite generally considered a good game and good fish.
Date:
1942
Creator:
Micks, Don W.
System:
The UNT Digital Library
The Seasonal Cycle in the Testis of the Large-Mouthed Black Bass, Huro Salmoides, (Lacepede)
Study to determine the seasonal changes in histological and cytological structures in the testis of Huro Salmoides (Lacepede), the large-mouthed black bass.
Date:
1942
Creator:
Johnston, Perry Max
System:
The UNT Digital Library
Composition and Distribution of the Vegetation in Farm Pastures in Denton County, Texas
This investigation has for its aim the determination and the evaluation of the vegetational composition in certain farm pastures in Denton County, Texas.
Date:
1946
Creator:
Parker, Robert S.
System:
The UNT Digital Library
The Effect of Medium Constituents upon Pigment Production by Four Species of Bacteria
This investigation had for its aim the determination of the effects of various materials, added to the basic culture medium, upon pigment production of the four chromogens Staphylococcus aureus, Sarcina lutea, Serratia marcescens, and Rhodococcus cinnabaris.
Date:
1947
Creator:
Goode, Jo Dunn
System:
The UNT Digital Library
Changes in Heterozygosity Through Time in American Standardbred and American Saddlebred Horses (1960-1990)
Observed and expected heterozygosity (H) levels for ten electrophoretic blood marker loci and expected H for seven red blood cell (RBC) anitgen/antibody loci were examined for 20 years in American Standardbred and 30 years in American Saddlebred horses. Standardbreds were classed by gait, Trotter and Pacer, and evaluated separately in most analyses. 4,404 Trotters and 12,271 Pacers were found to have statistically highly significant losses of mean total observed H through time for the ten electrophoretic loci (P<0.005), although in Trotters the loss was more extreme (P<<0.001). Loss of H in 5984 Saddlebreds was not significant (P=0.259). Correlations of RBC expected H through time showed decreases in all three groups.
Date:
May 1992
Creator:
King, Judith A. (Judith Ann), 1955-
System:
The UNT Digital Library
Microflora Found in a Selected Group of Food Products Enclosed in a Protective Wrapper
The purposes of this study are, first, to determine relative numbers and predominant types of bacterial organisms in the various food products studied; second, to evaluate the efficiency of the paper coverings of these foods; and third, to determine whether these products are potential sources of food poisoning.
Date:
1949
Creator:
Ogden, William H.
System:
The UNT Digital Library
Antibiocity of the Oleoresins of One Hundred Texas Spermatophytes upon Twenty Gram-Positive Bacterial Organisms
This investigation is concerned with the testing, in vitro, of oleoresins from one hundred higher plants common to North and South Central Texas. The plants used were selected in order to obtain a representative collection which might be of value in future research.
Date:
1949
Creator:
Richardson, Lavon P.
System:
The UNT Digital Library
The Histological Effects of Injections of Fish Pituitary Extracts on the Testes of Male Frogs, (Rana Pipiens), and the Reproductive System of Immature Mice
The purpose of this investigation was first, to make a histological and cytological study of the testis of male frogs, Rana pipiens, and to determine if there were tissue or cellular changes as well as physiological effects caused by fish pituitary-extract injections. Second, to determine if injections of fish pituitary extract into immature female white mice caused histological changes in the ovaries and uteri.
Date:
1949
Creator:
Robertson, William George
System:
The UNT Digital Library
An Investigation of Microbial Antagonism in Ten Denton County, Texas Soils
This thesis is concerned primarily with the growth and detection of soil microorganisms in ten Denton County, Texas, soils antagonistic to a specific gram-positive and a specific gram-negative bacterial organism.
Date:
1951
Creator:
Dickey, Charles E.
System:
The UNT Digital Library
The Chemical Compounds Produced by Actinomycetes and Their Relation to Tastes and Odors in a Water Supply
The purpose of this problem was to determine the cause of tastes and odors in the Breckenridge water supply and to isolate and culture the organisms responsible for the offensive chemicals.
Date:
1951
Creator:
Dill, Warren S.
System:
The UNT Digital Library
The Antibiotic Activities of Some Members of the Cactaceae Family
This problem has been concerned with, first, the collection of sixteen species of plants belonging to Cactaceae family; second, the drying of these and the extraction of the oleoresins thereof; third, the determination of the extent to which these substances inhibit the growth of ten gram-positive and ten gram-negative bacterial organisms; and fourth, a determination of the possible utilization of these extracts a prophylactic or chemotherapeutic agents.
Date:
1951
Creator:
Gilmore, Derward E.
System:
The UNT Digital Library
An Investigation of Chloral Hydrate as an Inhibitor of Bacterial Spreader Colonies in Milk Plate Counts
This study has consisted primarily of the addition of varying amounts of chloral hydrate to nutrient agar plates and the determination of the definite effects thereof upon the colony plate counts of various samples of milk.
Date:
1951
Creator:
Gochnour, Runnald Wallace
System:
The UNT Digital Library
Pathogenic Bacterial Survey in the Trinity River from East Fort Worth, Texas, to South Dallas, Texas
This study was conducted from March 3, through June 2, 1951, in order to determine to what extent pathogenic bacteria were entering the Trinity River between East Fort Worth, Texas and South Dallas, Texas, from municipal sewage disposal plants.
Date:
1951
Creator:
Grizzle, Walter R.
System:
The UNT Digital Library
A Microbial Survey of Raw Ingredients Used in Finished Products at Kraft Foods Company, Garland, Texas
The purpose of this investigation is to determine through routine checks the number of organisms present in the various raw ingredients used for the preparation of foods. The problem has consisted of, first, a determination of the total bacterial population by numbers; second, a determination of the incidence of colon bacteria in the samples examined; third, a determination of the presence of yeasts and molds; and fourth, an attempt to utilize this information obtained in judging the methods of handling the raw ingredients before they are used in the processing of foods.
Date:
1951
Creator:
Langston, Clarence Walter, Jr.
System:
The UNT Digital Library
Isolation and Identification of Bacterial Species Associated with the Common House Fly and Three Species of Cockroaches
In an attempt to demonstrate the role of insects as possible carriers of pathogenic bacterial organisms this investigation has been concerned with the determination of the microbial population associated both internally and externally with the common house fly and three species of the cockroach.
Date:
1951
Creator:
Morland, Clifford L.
System:
The UNT Digital Library
Isolation, Identification and Cultivation of Four Phytopathogenic Fungi
This investigation includes a morphological and cultural study of four rather common pathogenic fungi one of which attacks Zinnia elegans, one Lagerstroemia indica, one Ligustrum lodense and one Euonymus japonica. The problem includes, first, a determination of the genera of these four fungi as revealed by their morphology in natural habitat; second, a determination of the growth and cultural characteristics of these on Cornmeal, Potato, Bean, Prune and Carrot agars; third, a comparison of the growth and cultural characteristics of these in natural habitat with the same on the various agars used; and fourth, an evaluation of the five artificial culture media in so far as their usage is concerned in the growth and cultivation of these four species of fungi.
Date:
1951
Creator:
Parks, Leroy W.
System:
The UNT Digital Library
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