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Träfflista för sökning "WFRF:(Persson Jan) srt2:(1985-1989)"

Sökning: WFRF:(Persson Jan) > (1985-1989)

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1.
  • Carlsson, Jan, et al. (författare)
  • Catalase inhibition by sulfide and hydrogen peroxide-induced mutagenicity in Salmonella typhimurium strain TA102
  • 1988
  • Ingår i: Mutation research. - : Elsevier. - 0027-5107 .- 1873-135X. ; 202:1, s. 59-64
  • Tidskriftsartikel (refereegranskat)abstract
    • The lethal and mutagenic effects of hydrogen peroxide were studied in exponentially growing cultures of Salmonella typhimurium strain TA102. Exposure of the cultures to non-lethal levels of sodium sulfide significantly increased the lethality and mutagenicity of hydrogen peroxide. The catalase activity was decreased in cells exposed to sodium sulfide, but there were no changes in the cellular levels of superoxide dismutase, glutathione reductase, or NADPH-dependent alkyl hydroperoxide reductase. Hydrogen peroxide-induced mutagenesis and killing of S. typhimurium strain TA102 in the presence of sulfide may in part be explained by an inactivation of catalase by sulfide.
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  • Larsson, Jan Eric, et al. (författare)
  • Knowledge Representation by Scripts in an Expert Interface
  • 1986
  • Ingår i: American Control Conference.
  • Konferensbidrag (refereegranskat)abstract
    • System identification demands skill and experience, and the validity of the results strongly depends on the user'sknowledge. For this reason a help facility that uses domain specific knowledge about system identification is needed. This paper deals with the representation of knowledge in an expert interface for system identification, using the interactive identification package "Idpac". The concept of scripts is introduced. A small system has been implemented and a description of it is given.
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