3 Matching Results

Explore Results

Results: 1 - 3
open access

A Study of the Water-Soluble Antigens from Virulent and Attenuated Biotypes of Brucella abortus

Description: Through chemical analysis and ion exchange chromatography of watersoluble antigens, this investigation supports the view that the majority of differences between the biotypes are quantitative. It was also found that strains demonstrate distinct, qualitative differences when compared to the attenuated strain 19 by immunodiffusion and thin-layer polyacrylamide gel, isoelectric focusing. These differences include the presence of antigens on virulent strains that are absent on strain 19. In additio… more
Date: May 1977
Creator: Brodeur, Richard D.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The Detection of Poliovirus in Denton Sewage by Immunofluorescence and Immunodiffusion Techniques

Description: Several final sewage effluents from the Denton Disposal Plant were demonstrated to contain Poliovirus types II and III. Pleated encapsulated filters at pH3.5 enhanced the recovery of the Poliovirus at a higher tier in comparison with nitrocellulose filter (Millipore) and glass fiber filter of pore size 0.45u. This thesis explores problems that face us today in our quest to eliminate viral pathogens from the natural and waste water needed for human, domestic, and industrial consumption. Prelimin… more
Date: August 1975
Creator: Olaiya, Felix Ayodele
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Discovery of a Thermophilic Nitrogen Fixing Bacterium

Description: The thermophilic bacterium designated NT-7 was shown to reduce acetylene to ethylene at 35 C. It was found that the organism does not reduce acetylene when it is grown in Burk's medium with 0.3 per cent (w/v) NH4 N0 3 . Reduction of acetylene at 55 C could not be demonstrated due to insolubility of acetylene in Burk's medium at this temperature. It was shown that the bacterium NT-7 can not grow in the absence of atmospheric nitrogen at 55 C when combined nitrogen is not supplied with the nutrie… more
Date: August 1977
Creator: Tabarya, Daniel
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
Back to Top of Screen