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UNT Libraries
Department:
Department of Biology
Decade:
1950-1959
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UNT Theses and Dissertations
Biological Indices of Stream Pollution
Date: August 1952
Creator: Russell, James C.
Description: A thorough biological survey and evaluation is a lengthy and expensive project. The number of technically trained persons required prevent its use by most public agencies. Since public health departments are the groups most frequently concerned with measuring the effects of pollution in streams, a need exists for a simplified method of sanitary survey. Recognizing this need, the Texas Heal Department assigned the writer the problem of devising a method of survey which would require a field party of two and could be conducted entirely from a mobile field laboratory.
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc130298/
Microbial Utilization of a Certain Hydrocarbon Insecticide
Date: August 1951
Creator: Dorman, Homer L.
Description: This problem includes, first, the isolation and identification of microorganisms which utilized the hydrocarbon insecticide as a sole source of carbon and energy; second, a determination of the effect on plants sprayed with the hydrocarbon medium as compared with the effect on plants sprayed with the hydrocarbon medium containing a good growth of hydrocarbon-utilizers; and third, a determination of the ability of laboratory stock cultures of organisms to utilize or remain alive in the hydrocarbon medium.
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc130266/
The Cultural, Physiological, Morphological and Chemical Characteristics of an Actinomycete from Lake Waco, Texas
Date: January 1954
Creator: McCormick, William C.
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.
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc130361/
A Preliminary Report on the Effect of Roentgen Rays on the Formed Elements of Avian Blood
Date: August 1954
Creator: Berger, Gillett
Description: This problem consists primarily in determining the numerical value of the leukocytes after different amounts of roentgen rays had been applied to the subjects. The Atomic Energy Commission set up a problem concerning the effects of roentgen rays on the fertility in chickens, and grants were given to two institutions to study this. The blood work in this paper was an off-shoot from one of these five fertility grants.
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc130373/
An Investigation of Selected Factors Related to the Professional Status of the Science Teachers in the Four-Year Accredited High Schools of Texas for the School Year 1952-1953
Date: August 1953
Creator: Whitehead, Oren W.
Description: The purpose of this study is to gather information related to the professional status of the science teachers in the four-year accredited high schools of Texas for the school year 1952-1953. The principal concern of the study is "Who is teaching science?"
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc130351/
Morphological and Physiological Changes in Micrococcus Pyogenes Var. Aureus during Development of its Resistance to Terramycin
Date: August 1959
Creator: Watson, Gerald T.
Description: The problem in this investigation consists of, first, the procurement of several strains of Micrococcus pyogenes var. aureus; second, the comparison of the degree and rate of development of resistance of these organisms to terramycin; and, third, to study the morphological and physiological changes which occur during the development of resistance.
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc130350/
Seed Treatment of Thirty Species of Pasture Grasses and Legumes with Certain Du Pont Disinfectants
Date: 1950
Creator: Clark, Caleb Perrin
Description: This review has dealt primarily with the efforts of scientists to control certain smut diseases of grains. The principal reason for treating plant seeds is to obtain good stands of vigorous, healthy plants that will produce increased yields of superior seed.
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc130238/
Extracts of Garden Vegetables as Sources of Nutrition for Various Microorganisms
Date: January 1954
Creator: DuBois, Kenneth Guinn
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.
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc130355/
A Rapid Modification of a Standard Disk-plate Antibiotic Susceptibility Test
Date: January 1955
Creator: Jackson, Leslie Warren
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.
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc130417/
Anaerobic Organisms in Acute and Chronic Pulmonary Diseases
Date: August 1958
Creator: Riddel, George Hugh
Description: This study concerns a determination as to whether anaerobic organisms are involved in pulmonary diseases, particularly those of the chronic type.
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc130447/