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October 1998


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The Pharmaceutical Microbiology Mail List <[log in to unmask]>
Wed, 21 Oct 1998 21:42:01 -0400
text/plain (91 lines)
If you indeed find, such a program/training aid PLEASE, PLEASE, PLEASE send
the PMF List the source.  There are numerous correspondents who would find
this most useful.
Betty Darner

At 05:07 PM 10/20/98 +0100, Dr R.H. Pryce-Jones wrote:
>Dear All,
>As an academic pharmacist involved in teaching pharmaceutical microbiology,
>I find the
>new discussion group both interesting and useful.
>Could I ask the group if any of the members knows of a computer package or
>web site
>where there is a Computer Aided Learning program which deals with Fo values.?
>I would specifically like a program which would show, graphically or
>diagramatically, how to
>calculate D values, Z values and ultimately Fo values.  We have a program
>which takes
>data from an autoclave and prints out Fo at one minute intervals but this
>does not help with
>showing our students the processes of calculation of D  and Z values for
>organisms.  Ideally we would like a program that starts with diagrams of
>plates which are
>symbolic representations of the surface count method cfus from organisms
>that have been
>heated at given temperatures for given times.  From these the students
>could  count cfus, then
>calculate the D values and subsequently the Z values.  An even more useful
>program would be
>one that gave data that allowed the calculation for different species. A
>comparison of the calculations for  a non-sporulating vegetative organism
>compared with the spores of, say, B. stearothermophilus would also be very
>We would also be interested in a similar type of program which allows the
>calculation of the log reduction values obtained from "sterile" filtration
>using membrane filters.
>At present we do these calculations with one set of real plates in the lab.
>but do not have time for repeats with different organisms or if anything
>goes wrong.
>If you know of any such programs please e-mail me at the address below.
>Many thanks in advance.
>Howard Pryce-Jones.
>Dr. R. Howard Pryce-Jones       Tel:  (+44) (0)141 552 4400 Ext. 2506
>                                        Tel:  (+44) (0)141 548 2506
>Departmental                    Fax:  (+44) (0)141 552 6443
>Department of Pharmaceutical Sciences,
>Strathclyde Institute for Biomedical Sciences,
>University of Strathclyde,
>27 Taylor Street,
>Glasgow,                                |E-mail:
>G4  0NR,                                [log in to unmask]    or
>Scotland, UK.                           [log in to unmask]
>World Wide Web pages:
>Any views expressed are my own and not necessarily those of the University
>of Strathclyde.
>The PMFList ( is operated from
>The Microbiology Network ( and supported by
>our sponsors ( as a service to
>the scientific community.
Betty Darner
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The PMFList ( is operated from
The Microbiology Network ( and supported by
our sponsors ( as a service to
the scientific community.