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PARTICIPANTS
Organizers
Benjamin Bostick is a faculty member in the Department of Earth
Sciences at Dartmouth College. Research interests include the reactions of
trace elements in soils, the chemistry and cycling of iron and sulfur in soils
and sediments, and biogeochemistry. This research involves both field and
laboratory-based work.
Timothy McPhillips received his Ph.D. in Chemistry from
the California Institute of Technology in 1997. His graduate work focused on
static and time-resolved x-ray crystallographic studies of phosphoglycerate
kinase and the photosynthetic reaction center. Since 1997 he has worked at SSRL
developing instrumentation, software, and computing infrastructure for the
integrated research environment at the macromolecular crystallography beam
lines.
Invited Speakers
Thomas Angelini is a Ph.D. graduate student in the department of
Physics at the University of Illinois, Urbana-Champaign. He studies the role
of electrostatics and counterion behavior in self assembled systems of
biological macromolecules.
Herbert Axelrod is an Associate Project Scientist working with
Professor George Feher in the Department of Physics at the University of
California San Diego on the crystallization and x-ray structure determination
of membrane protein complexes involved in bacterial photosynthesis. He received
his Ph.D. degree in Biochemistry from the University of California Riverside in
1990 where he worked with Professor Alexander McPherson on the crystallization
of single-stranded DNA binding proteins. After receiving his Ph.D, he joined
Professor Feher's group where he continues to pursue research at present on the
structure of the membrane bound photosynthetic reaction center-light harvesting
1 complex.
Arthur Bienenstock, a Professor of Materials Science and
Engineering and of Applied Physics at Stanford University, has been appointed
to the position of Vice Provost and Dean of Research and Graduate Policy at
Stanford effective September 1, 2003. He currently serves as the director the
Geballe Laboratory for Advanced Materials. He is also a former director of
SSRL and more recently the Associate Director for Science of the Office of
Science and Technology Policy. Throughout his Stanford career, Dr.
Bienenstock has maintained a
research group that has, among other things, contributed significantly to the
ability to determine atomic arrangements in amorphous materials using
synchrotron radiation.
Jeffrey Catalano is a Ph.D. candidate in the Department of Geological
and Environmental Sciences at Stanford University. His research focuses on the
characterization of uranium speciation in contaminated soils and sediments at
the Hanford site, as well as examining the fundamental processes controlling
the adsorption of uranium to clay and metal oxide surfaces."
Clara Chan is a graduate student in the Dept. of Earth and Planetary
Science at the University of California, Berkeley. Her research is focused on
the microbiology, microbial ecology and mineralogy of neutrophilic iron
oxidizers and iron-oxide rich biofilms.
Russell Chianelli is a Professor of Chemistry, Materials and
Environmental Sciences at the University of Texas at El Paso. Research
interests include
energy storage and conversion materials, transitions metal chalcogenide
chemistry and physics, crystal growth, biological mineralization and
calcification, solid state chemistry and physics of carbonates and phosphates,
structure function relations in catalytic materials, bioremediation,
environmental catalysis, phytoremediation, environmental statics, metal
environmental contaminants.
Rhiju Das is a Ph.D. graduate student in in the Physics Department at
Stanford University working with Dan Herschlag and Seb Doniach. His research
focuses on how bio-polymers, especially RNAs, fold into well-defined complex
structures.
Guadalupe de la Rosa is a Ph.D. student in Dr Jorge Gardea's group. Her
research interest includes the elucidation of the heavy metal uptake mechanisms
by tumbleweed (Salsola kali), a potential phytoremediator for polluted
soils.
Patricia Dehmer, Associate Director of Science for Basic Energy
Sciences, Department of Energy, since November 1995. Formerly a Senior
Chemist at the Argonne
National Laboratory, her research interests include vacuum ultraviolet,
multiphoton, degenerate four-wave mixing, and laser-induced grating studies
using ion mass analysis, electron kinetic energy analysis, and fluorescence
spectroscopy analysis of the spectra and the decay dynamics of excited states
of atoms, molecules, and van der Waals clusters. Rydberg state and excited
state reactions; chemiionization reactions; ion-molecule reactions.
Jonathan Dorfan is a Stanford and SLAC Professor of
Physics and Director of SLAC. Associated with SLAC since 1976,
Dr. Dorfan
became an Associate Director in 1994 to lead the B-Factory project to
successful completion. His research areas are experimental particle physics
and accelerator design.
Peter Eng is a Senior Research Associate at the James Franck
Institute and the Consortium Advanced Radiation Sources (CARS) at the
University of Chicago.
John Galayda is an Assistant Director at SLAC for the LCLS Program.
Before coming to
SLAC, he served as the Deputy Associate Laboratory Director for the Advanced
Photon Source at the Argonne National Laboratory. He played a key
role in the design, construction, and commissioning of both the Advanced
Photon Source and the National Synchrotron Light Source.
Ben Gilbert is a Postdoctoral Researcher in the Department of Earth and
Planetary Science at UC-Berkeley. Research interests include the structure,
properties, and reactivity of nanoparticles; synchrotron x-ray research.
Jerry Hastings is a Staff Scientist at SSRL. His expertise is
in the areas of x-ray scattering, x-ray diffraction, ultra fast x-ray pulses,
free electron x-ray lasers, and condensed matter applications.
Robert Hettel is an Assistant Director for the Accelerator Systems
Department at SSRL and the Project Manager for the SPEAR3 upgrade.
Keith Hodgson is the Howard H. and Jessie T. Watkins Stanford University
Professor of Chemistry and SSRL Director. He is a pioneer in synchrotron-based
biological research: performed the world's first SR protein crystal diffraction
measurements; explored anomalous dispersion in what later became known as MAD;
developed XAS for structural biology; and made early seminal contributions to
biological SAXS.
Xiomara C. Kretschmer received her Ph.D. in
Environmental Science and Engineering from the University of Texas at El Paso
in 2002. Her graduate work centered on metal ion binding by cyanobacterial
whole cells and purified peptidoglycan. She is currently performing research
on the reproductive and endocrine disrupting effects of xenobiotics with
special interests in endocrine disrupters that bind orphan nuclear receptors
and alter steroid metabolism. Several plasticizers and pesticides have been
shown to bind to receptors thought to be specific for steroid hormones. In
turn, these chemicals may mimic or inhibit our natural hormonal responses.
Specific projects include investigating the effects of the endocrine disrupter
4-nonylphenol on breast cancer proliferation and steroid metabolism.
Antonio Lanzirotti is a Microprobe Scientist at the University of
Chicago - CARS and is also currently serving as the User's Executive Committee
Chairman at the National Synchrotron Light Source.
Matthew Latimer
Michael S. Lubell is Chairman and Professor of Physics at the City
College of the City University of New York (CCNY) and the Director of Public
Affairs of The American Physical Society (APS). Dr. Lubell earned his Ph.D.
from Yale University in 1969. He served on the faculty of Yale from 1971 to
1980 before joining Physics Department at CCNY in 1980. He has held concurrent
positions as a Visiting Scientist at Brookhaven National Laboratory (1986-87),
a Visiting Professor at the University of Texas-Austin (1990) and a DAAD
Scientist at Universität Bielefeld (1993). Dr. Lubell is a Fellow of the
American Physical Society (APS) and the American Association for the
Advancement of Science and a member of the New York Academy of Sciences and
Sigma Xi. He has served as an advisor to numerous politicians and government
officials.
Myriam Perez De la Rosa is a PhD. Candidate working on the structure
of amorphous and highly disordered transition metal sulfide catalysts. The
transition metal sulfide catalysts are currently used in all petroleum
refineries for improving the environment quality of the fuels by removing
sulfur and other pollutants. Understanding of the structure of these materials
will lead to more effective catalysts for the current applications and lead to
other applications such as fuel cell electrodes.
John Peters is an Associate Professor in the Department of Chemistry
and Biochemistry at Montana State University. His research interests deal
mainly with investigating the structure/function relationships in
metal-containing proteins. The structures serve as a basis for understanding
the molecular mechanisms of enzyme-catalyzed reactions.
Ingrid Pickering, Canada Research Chair in Molecular
Environmental Science and Associate Professor in the Department of Geological
Sciences at the University of Saskatchewan. She will
use the CLS to study the chemical fate of toxic elements in the environment
and their impact on ecosystem and human health. Her work will increase
understanding of these systems and provide a foundation for possible
remediation strategies for contaminated areas. In her work as a Staff
Scientist at SSRL, Dr. Pickering used XAS to investigate various potentially
toxic elements occurring in bacteria, plants and insects.
Thomas Rabedeau
James Safranek is a Staff Scientist at SSRL who's research focuses on
understanding, controlling, and improving the performance of synchrotron
radiation storage rings. He will be in charge of commissioning SPEAR3.
Sam Shaw is a Lecturer in the Department of Earth Sciences at the
University of Oxford, UK. His research focuses on the use of synchrotron
radiation techniques (EDXRD, SAXS and EXAFS) to characterise the precipitation
and crystallization of mineral phases.
Junko Yano is a post doc in the Vittal Yachandra / Ken Sauer group in
the Physical Biosciences Division of Lawrence Berkeley National Laboratory,
working on the structure and oxidation mechanism of the oxygen evolving
complex of Photosystem II by using x-ray absorption spectroscopy and EPR.
Contributed Speakers
Session Chairs
John Bargar is a Staff Scientist at SSRL specializing in spectroscopic
studies in aqueous biogeochemistry, with emphasis on XAS investigations of
mineral surface reactions.
Piero Pianetta is a Professor of Electrical Engineering at Stanford
University and Assistant Director for the Experimental Systems and Research
Department at SSRL. Research interests include
ultrasensitive methods for analyzing contamination on silicon wafer surfaces
and
understanding the relationship between the atomic and electronic structure of
semiconductor interfaces and their electrical properties.
Hiro Tsuruta is a Senior Scientist at SSRL. His research activities
mainly focus on structural studies of oligomeric proteins and macromolecular
assemblies primarily by non-crystalline x-ray scattering techniques.
Contact Cathy Knotts at
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