FRANCESCHETTI - My overall purpose in requesting a PDA for the Fall semester was to
position myself for an increase in research productivity by developing my
abilities in cognitive science and neural modeling while reviving activity in
areas in which I had been successful previously, namely the mathematical
modeling of charge motion in condensed matter.
the area of cognitive science and neural modeling I was able to devote
appreciable time to the continuing study of physics tutoring being conducted in
the Institute for Intelligent Systems. This
lead to my being coauthor of two oral presentations that will occur at the 24th
Annual Meeting of the Cognitive Science conference [1,2].
Growing from this work are two studies being conducted at the moment, one
involving the analysis of transcripts of over 100 hours of physics tutoring
sessions and the other an experimental study of students descriptors of time
instants and durations. These are
being conducted with the aid of doctoral students in Instructional Design and in
Psychology. In a more analytical
mode I was able to bring an undergraduate computational physics project, using
phase diagrams to describe the different behaviors of a single idealized nerve
cell to the point where I could present it at a local scientific conference 
with a bit of expansion this work should be publishable in a journal such as Physica.
I also was able to have a short commentary accepted for publication on
some modeling issues  that actually are of some importance in work I intend
In the modeling of charge motion, I have acquired
new software for impedance analysis and I am now applying it to data on
reference electrodes recorded by M. Ciobanu, a doctoral student in the chemistry
department. I have additional
software on order that will provide a capability of modeling charge
distributions in nanoparticles of ionic conductors. This is an area where my previous academic theoretical work
is now of greater practical interest due to the emergence of nanotechnology.
am grateful for the opportunity afforded by the PDA and feel that I have put the
time to good use, but I do not feel that presentations are a substitute for
contributions to the primary literature. I
intend to submit at least three papers to refereed journals based on my PDA
efforts before the calendar year is out.
Latent Semantic Analysis in Learning Environments with Conversational Agents and
Tutorial Dialog,” A. C. Graesser, X. Hu, B. A. Olde, M. Ventura, A. Olney, M.
Lowerse, D. R. Franceschetti and N. Person, accepted for oral presentation at
the Twenty-Fourth Annual Conference of the Cognitive Science Society,
Washington, D.C., July 2002
Right Stuff: Do You Need to Sanitize Your Corpus when Using Latent Semantic
Analysis?” B. A. Olde, D. R. Franceschetti, A. Karnavat, A. C. Graesser,
and the Tutoring Research Group, accepted for oral presentation at the
Twenty-Fourth Annual Conference of the Cognitive Science Society, Washington,
D.C., July 2002
Space Phase Diagram for Simple Neurons Implementing Symmetrical Cellular
Rules,” D. R. Franceschetti and W. Brad Robinson, MAESC 2000 Conference,
Memphis, TN, May
Simulations Might Offer Some Advantages over Purely Computational Ones,” D. R.
Franceschetti, Behavioral and Brain Sciences (submitted)