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Temperature Effects On Distribution Of 14c Photosynthetic Assimilates And Light Stimulation Of Cold Hardiness In 'Valencia' Orange Seedlings, Charles Guy
Retrospective Theses and Dissertations
No abstract provided.
A Comparative Study Of Aldehyde Oxidase From Tumorous-Head And Oregon-R-C Strains Of Drosophila Melanogaster, Richard A. Respess
A Comparative Study Of Aldehyde Oxidase From Tumorous-Head And Oregon-R-C Strains Of Drosophila Melanogaster, Richard A. Respess
Retrospective Theses and Dissertations
Aldehyde oxidase has been partially purified from Oregon-R-C and tuh(ASU) strains of Drosophila melanogaster using an affinity technique. The two enzymes were subjected to a partial kinetic analysis and found to be very similar to one another. This indicated the problem of elevated aldehyde oxidase activity in tuh(ASU) at key developmental stages (Kuhn and Cunningham, 1976) is due to an abnormal regulation. A comparative isozyme study through the developmental stages showed no major differences between the enzymes indirectly supporting the idea of an abnormal regulation. A comparison of tuh(ASU) with four wild-type strains indicated it may be a fourth allozyme …
Antibodies To Milk Antigens In Human Coronary Heart Disease, Efstathios Spinos
Antibodies To Milk Antigens In Human Coronary Heart Disease, Efstathios Spinos
Retrospective Theses and Dissertations
Milk protein has been implicated as a factor in the development of atherosclerosis. Significantly higher titers of antibodies (P < 0.0002) toward milk antigens were observed in patients suffering from coronary heart disease as compared to age matched controls. These hemagglutination titers were not sex related but may have been related to age. Specificity of the antigen-antibody reaction was demonstrated by a hemagglutination inhibition test. The complement fixation test was evaluated and was less sensitive than the tanned hemaggIutination test. Treatment with 2-mercapto-ethanol resulted in reduced hemagglutination titers, indicating that significant antibody activity may be due to IgM. A special application of the Combs test detected specific antibodies on the surface of tanned and coated RBC which did not otherwise produce detectable agglutination.
The Effects Of Enzymes On Activated Sludge Floc, Terry Lee Stoddart
The Effects Of Enzymes On Activated Sludge Floc, Terry Lee Stoddart
Retrospective Theses and Dissertations
Dialysed activated sludge was used as a substrate to test for enzymes which can hydrolyse activated sludge floc. Two hundred and fifty aerobic and anaerobic microorganisms were tested against activated sludge for the presence of hydrolytic enzymes. These included known genera and organisms obtained by various enrichment procedures. Anaerobic digester mixed liquor was contacted with activated sludge agar under anaerobic conditions. None of the microorganisms present in the digester liquor hydrolysed the floc. The following commercial enzymes were contacted with activated sludge singly, in combination, and sequentially under various physical and chemical conditions: protease, lipase, cellulose, pectinase, phospholipase C, trypsin, …
Comparative Histology Of The Respiratory Tract Of Normal Peromyscus Floridanus And P. Gossypinus And Effects Of Exposure To Solid Rocket Motor Fuel Exhaust On P. Gossypinus, Terry Lee Bitner
Retrospective Theses and Dissertations
Microscopic examination of the tracheal dimensions of normal Florida mice (Peromyscus floridanus) and cotton mice (P. gossypinus) showed no significant differences between the two species, but external examination showed the tracheal length of the Florida mouse to be longer than that of the cotton mouse. Microscopic examination of the intrapulmonary apparatus (bronchioles, alveolar ducts, atria, and alveoli) of normal Florida and cotton mice showed no significant differences in measurements between the two species. Cotton mice were exposed to exhaust gases produced by the burning of solid rocket motor (SRM) fuel. Mice exposed once for a duration of 10 min demonstrated …