MONDAY, MARCH 30

"Broadcast Theory of Human Timing" (condensed, atomic , and molecular physics), David A. Rosenbaum, Penn State, 3:30 p.m., 339 Davey Laboratory, Department of Physics (865-7534).

"Nonforward Parton Distributions and Their Evolution" (elementary particles and fields), A. Raduyshin, Old Dominion University and the Thomas Jefferson National Acceleration Facility, 3:30 p.m., 210 Davey Laboratory, Department of Physics (865-7382).

"DNA Bending, Twisting, and Adriamycin Adduct Formation" (Pollard Lecture), Donald Crothers, Yale University, 4:00 p.m., 110 Wartik Laboratory, host: Robert Simpson, Department of Biochemistry and Molecular Biology (865-3072).

"Moduli of Punctured Riemann Spheres and Operads," Philip Foth, Penn State, 5:00 p.m., 306 Boucke Building, Department of Mathematics (865-7527).

TUESDAY, MARCH 31

"Supercritical Fluids as Polymer Processing Aids," Esin Gulari, Wayne State University, 10:00 a.m., 140 Fenske Laboratory, host: Ali Borhan, Department of Chemical Engineering (865-7847).

"Dioxiranes: Versatile Oxidizing Agents with Applications for Asymmetric Synthesis," Joe Saunders, Penn State, 11:15 a.m., S-5 Osmond Laboratory, Department of Chemistry (865-4041).

"The Ankeny-Artin-Chowla Class Number Relations," Scott Sadusky, Penn State, 1:00 p.m., 113 McAllister Building, Department of Mathematics (865-7527).

"New Twistor Description of Vacuum Spacetimes," Roger Penrose, Oxford University and Penn State, 2:00 p.m., 339 Davey Laboratory, Center for Gravitational Physics and Geometry (863-9605).

"Reverse Mathematics: An Introduction (continued)," Steven Simpson, Penn State, 2:30 p.m., 113 McAllister Building, Department of Mathematics (865-7527).

"Existence and Non-Existence of Minimizers of Ginzburg-Landau Functionals," Karl Voss, Penn State, 4:00 p.m., 115 McAllister Building, Department of Mathematics (865-7527).

"Making Branches: Leaf Polarity and Meristem Formation," Kathy Barton(faculty candidate), University of Wisconsin at Madison, 4:00 p.m., 8 Mueller Laboratory, host: Sally Assmann, Department of Biology (863-9579).

"Nutrition and the Food Industry," Frances Seligson, Hershey Foods Corporation, 4:00 p.m., S-209 Henderson Building, Intercollege Graduate Program in Nutrition (865-3448).

WEDNESDAY, APRIL 1

"Peixoto's Theorem: I," Radu Orendovici, Penn State, 10:30 a.m., 328E Health and Human Development East Building, Department of Mathematics (865-7527).

"The Milky Way as a Cannibal: What Was for Breakfast? and What Will Be for Dinner?" Kathryn Johnston, Institute for Advanced Study, 4:00 p.m., 541 Davey Laboratory, host: Chris Churchill, Department of Astronomy and Astrophysics (865-0418).

THURSDAY, APRIL 2

"Crystallization and Preliminary X-Ray Studies of Rhizobium meliloti DctD Two-Component Receiver Domain," Lori Zeringue, Penn State, 11:15 a.m., 101 Althouse Laboratory, Department of Biochemistry and Molecular Biology (865-3072).

"Fixed Point Formulas and the Reimann Zeta Function (after A. Connes)," Nigel Higson, Penn State, 11:15 a.m., 3 White Building, Department of Mathematics (865-7527).

"Quantum Monte Carlo," James B. Anderson, Penn State, S-5 Osmond Laboratory, 12:15 p.m., Department of Chemistry (863-0889). "Spin Foam Models of Quantum Gravity," John Baez, University of California at Riverside, 1:00 p.m., 339 Davey Laboratory, Center for Gravitational Physics and Geometry (863-9605).

"Effects of Wastewater Effluent Irrigation on Vernal Pond-Breeding Amphibians," Matt Laposta, Penn State, 3:45 p.m., 112 Buckhout Laboratory, host: William Dunson, Intercollege Graduate Program in Ecology (863-7221).

"Canonical Estimating Functions," Abram Kagan, University of Maryland, 4:00 p.m., 201 Thomas Building, Department of Statistics (865-1348).

"NMR Approaches to Drug Design," Luciano Mueller, Bristol-Myers Squibb, S-5 Osmond Laboratory, 4:00 p.m., Department of Chemistry (863-0889).

"The Role of Stochastic Variation in the Evolution of Ultraselfish Genes," Marie Dannie Durand, University of Pennsylvania, 4:00 p.m., 302 Pond Laboratory, Department of Computer Science and Engineering (865-9505).

"Hyperbolic Polynomials and Convex Analysis" (colloquium), Heinz Bauschke, University of Waterloo (Canada), 4:30 p.m., 102 McAllister Building (refreshments at 4:00 p.m. in 212 McAllister Building), Department of Mathematics (865-7527).

"The Microscopic World Unveiled by Electron Waves" (Mueller Lecture #1 of 2), Akira Tonomura, Hitachi, Ltd. (Japan), 8:00 p.m., 104 Keller Building, host: Paul Cutler, Department of Physics (865-2832).

FRIDAY, APRIL 3

"Real-Time Observation of Magnetic Vortices in Superconductors Using Electron Waves" (Mueller Lecture #2 of 2), Akira Tonomura, Hitachi, Ltd. (Japan), 11:00 a.m., S-5 Osmond Laboratory, host: Paul Cutler, Department of Physics (865-2832)

"Structure and Mechanism As Guidelines in the Synthesis of Hybrid Organic-Inorganic Polymers," Christopher Allen, University of Vermont, 2:00 p.m., 339 Davey Laboratory, Department of Chemistry (865-4041). "Molecular Models of Fluids Confined in Disordered Porous Materials," Peter Monson, University of Massachusetts, 2:30 p.m., S-5 Osmond Laboratory, Department of Physics (863-0119). "Turbulent Flows on Large, Fast Vehicles," Alexander Smits, Princeton University, 3:30 p.m., 102 McAllister Building, Department of Mathematics (865-7527).

"The Global Carbon Cycle and the Duke Forest Free-Air CO2 Enrichment (FACE) Experiment," William H. Schlesinger and James B. Duke, Duke University, 3:35 p.m., 101 Agricultural Science and Industries Building, Life Sciences Consortium (865-3155).

SATURDAY, APRIL 4

(none)

SUNDAY, APRIL 5

(none)

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