## 2 researchers named Goeppert Mayer scholars

Mathematician Lisette G. de Pillis and
experimental physicist Maria Iavarone have
received 1999 Maria Goeppert Mayer Distinguished
Scholar awards.

The award, named for an Argonne physicist who
won the Nobel Prize in Physics in 1963, was
established to recognize outstanding achievements
by woman scientists and engineers. It provides
opportunities to conduct innovative research in
the special environment and unique capabilities
offered by Argonne.

Iavarone is an expert in the use of scanning
tunneling microscopy (STM), a technique that can
image solid surfaces down to atomic scales. She is
also skilled at preparing thin films of materials,
photolithographic techniques, development of
low-noise electronics, transport measurements and
tunneling spectroscopy.

Iavarone has worked with Argonne scientists to
conduct studies of high-temperature
superconducting materials (materials that conduct
electricity without resistance when cooled with
liquid nitrogen). She plans to conduct additional
research in the field during the year-long
distinguished scholar program, using STM to study
superconducting properties in thin films and
crystals.

De Pillis will visit the Mathematics and
Computer Science (MCS) Division at Argonne-East
for one year, where she will work with division
researchers in studies of fluid dynamics and
linear algebra. She is associate professor of
mathematics at Harvey Mudd College in Claremont,
Calif.

De Pillis' areas of expertise are in numerical
analysis and applied mathematics. Her work
includes the theory of wave behavior and the
mathematical modeling of biological processes. She
recently received funding to build a multinode
parallel "Beowulf" cluster computer.

De Pillis has a keen interest in applying
mathematics to "real-life" scientific
problems. She has directed five year-long clinics
that focus on solving industrial problems posed by
business and research firms, and was winner of a
prize for the best mathematics clinic in 1997.

She has also been involved in industrial
mathematics workshops designed to promote
cooperative research between mathematicians and
scientists of other disciplines.

De Pillis has given invited lectures at
leading universities and international
conferences, and has a strong record of
publication in fields ranging from numerical
linear algebra to chemical modeling.