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 Department: Department of Biology
 Collection: UNT Theses and Dissertations
Isolation, Purification, and Characterization of Aldolase from Human Heart

Isolation, Purification, and Characterization of Aldolase from Human Heart

Date: August 1972
Creator: Allen, Benja L.
Description: Aldolase from human heart has been purified 128-fold to a final specific activity of 11.52 units per mg. The purification procedure employed column chromatography on phosphocellulose.
Contributing Partner: UNT Libraries
Observations on the Life History of the Brown Spider, Loxosceles Reclusa Gertsch and Muliak

Observations on the Life History of the Brown Spider, Loxosceles Reclusa Gertsch and Muliak

Date: August 1967
Creator: Horner, Norman
Description: This research was undertaken primarily to further elucidate the life history of this medically important spider. Special attention was given to rearing experimental spiders under as near-natural environmental conditions as possible.
Contributing Partner: UNT Libraries
Pleomorphism in Selected Genera of Algae

Pleomorphism in Selected Genera of Algae

Date: June 1967
Creator: Bruton, Barbara A.
Description: It is the purpose of this study to ascertain what environmental factors might cause morphological changes exhibited by certain algae, also to determine if this variation in morphology is vegetative, reproductive, or artifactual in nature, and to show what effects these changes in morpohology might have on classification of the organisms in question.
Contributing Partner: UNT Libraries
Some Effects of X-Irradiaion on the Adrenal Response to Hypothalamic Stimulation in Rats

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

Date: January 1967
Creator: Agnew, Robert Laing
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 applied either singly or together, on the activity of the adrenal-pituitary axis. The parameters measured were changes in plasma corticosterone, in circulating eosinopihils, and in adrenal gland weight.
Contributing Partner: UNT Libraries
Serological Characteristics of Morphologically and Biochemically Similar Streptomyces Species

Serological Characteristics of Morphologically and Biochemically Similar Streptomyces Species

Date: August 1969
Creator: Kocsis, Imre J.
Description: It is the purpose of this investigation to test for serological characteristics of six Streptomyces species which exhibit identical and/or very closely similar morphological and biochemical characteristics.
Contributing Partner: UNT Libraries
The Production of Fragile Cysts by an Aberrant Strain of Azotobacter Chroococcum Isolated from Soil

The Production of Fragile Cysts by an Aberrant Strain of Azotobacter Chroococcum Isolated from Soil

Date: May 1969
Creator: Cagle, Gerald D.
Description: The purpose of this study is to determine if a strain of Azotobacter chroococcum isolated from the soil in northern Louisiana produces cysts which are as resistant to deleterious agents as those produced by previously reported strains os Azotobacter.
Contributing Partner: UNT Libraries
A Screening of Fungi for Metabolites Inhibitory to the Growth of Bloom-Forming Blue-Green Algae

A Screening of Fungi for Metabolites Inhibitory to the Growth of Bloom-Forming Blue-Green Algae

Date: December 1970
Creator: Hardcastle, Ronald V.
Description: Since many approaches to dealing with algal blooms are inefficient, expensive, or harmful, it was concluded that a biologically-synthesized chemical agent, specifically inhibitory to pre-bloom algal cells, might prove helpful in controlling algal blooms. Fungi were chosen as the biological entities to investigate for such a chemical.
Contributing Partner: UNT Libraries
Photoreactivation Studies on Azotobacter vinelandii ATCC 12837

Photoreactivation Studies on Azotobacter vinelandii ATCC 12837

Date: August 1968
Creator: Peterson, Johnny Wayne
Description: This thesis was written to study photoreactivation in different physiological conditions of the vegetative cell as well as the photoreactivation of the two morphological states of the Azotobacter cell: the vegetative cell and the cyst.
Contributing Partner: UNT Libraries
The Autecology of Celtis Laevigata in Flood Plain Forests of Denton County, Texas

The Autecology of Celtis Laevigata in Flood Plain Forests of Denton County, Texas

Date: January 1970
Creator: Hander, Lecil B.
Description: This thesis describes the present nature of one facet of some of the flood plain forest stands in Denton County, Texas. The specific purpose was to demonstrate the presence or absence of difference between the Celtis laevigata (commonly known as the hackberry, southern hackberry or sugarberry) populations in stands on Denton Creek and Elm Fork of the Trinity River.
Contributing Partner: UNT Libraries
A Study of Malate Dehydrogenase Isoenzymes in the Midge Larva Glyptotendipes barbipes

A Study of Malate Dehydrogenase Isoenzymes in the Midge Larva Glyptotendipes barbipes

Date: May 1972
Creator: Jones, Vicki E.
Description: Two isoenzymes of malate dehydrogenase were isolated and partially purified from the midge larva Glyptotendipes barbipes. Differential centrifugation followed by cellulose acetate and polyacrylamide gel electrophoresis revealed one isoenzyme associated with the mitochondrial fraction and another form found only in the cytoplasm.
Contributing Partner: UNT Libraries