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A research team led by Thomas Cech, president of the Howard Hughes Medical Institute and a distinguished professor at the University of Colorado at Boulder, has determined the detailed structure of an essential piece of telomerase enzyme, an important contributor to the vast majority of human cancers.

Professor Wendy Ashmore of the University of California, Riverside, one of the world's leading authorities on the archaeological study of space and landscape, will speak at the University of Colorado at Boulder on Feb. 12. Ashmore will talk about the new ways archaeologists are examining the history of ancient places like Stonehenge, the pyramids of Egypt, New Mexico's Chaco Canyon and the ancient Mexican city of Teotihuacan. The 10th Annual Distinguished Archaeology Lecture is sponsored by the CU-Boulder anthropology department and is free and open to the public.

Note to Editors: Members of the press are welcome to attend without charge. Most of the conference participants, including FCC Chairman Michael Powell, will be available for interviews. To arrange, contact Zachary Lange at (303) 735-5633 or zachary.lange@colorado.edu .

MEDIA ADVISORY Security will be tight for a talk by Professor Ward Churchill currently scheduled for Tuesday, Feb. 8, at the University Memorial Center on the Boulder campus of the University of Colorado. The talk, titled "Ward Churchill Speaks On His Book: Real Academic Discourse Outside the Filter of the Media," is scheduled at 7 p.m. according to the group planning the event, called "CU Students, Staff and Faculty in Support of Ward Churchill." The talk is planned for the Glenn Miller Ballroom in the UMC. Doors will open at 6 p.m.

In the past week, the University of Colorado has been at the center of a fierce debate that has raised a fundamental question: what are the boundaries of free expression, academic freedom and tenure protections? This question is especially salient in the face of the most offensive - the most appalling -- political expression, such as many of Professor Ward Churchill's comments in his essay regarding the events of September 11.

Six presidential science advisers are slated to speak at the University of Colorado at Boulder in 2005, beginning with a Feb. 14 event featuring John Marburger, current White House science adviser to President George W. Bush.

Editors: A complete schedule of events is posted as a pdf file at http://www.colorado.edu/cu-diversity/summit.html . The University of Colorado at Boulder will mark the 10th anniversary of the annual Campus Diversity Summit, "Wake Up! Diversity is Now!" on Feb. 9-10. Sessions are designed to promote dialogue and unity among diverse members of the community and to address educational goals for the future. All events are free and open to the public.

MEDIA ADVISORY The University of Colorado Board of Regents will hold a special meeting on Thursday, Feb. 3, on the Fitzsimons campus in Building RC-1 North Tower. The board will convene in the Hensel-Phelps Auditorium at 3 p.m. and immediately go into executive session. A public meeting will follow the executive session. The special meeting was called to consider the recently publicized comments of Professor Ward Churchill of the department of ethnic studies at CU-Boulder. For more information call (303) 492-6206. DIRECTIONS

Note to Editors: Members of the press are invited to attend without charge. To arrange, call Maralyn Mencarini at (303) 492-3258. The University of Colorado Real Estate Council's 2005 conference -- "Bright Future?" -- will be held Wednesday, Feb. 23, from 7:30 a.m. to 4 p.m. at the Denver Marriott City Center.

Ward Churchill, chair of the ethnic studies department at the University of Colorado at Boulder, today offered his resignation as department chair in a letter to Arts and Sciences Dean Todd Gleeson and Gleeson accepted his resignation, effective Jan. 31. Churchill will continue as a member of the faculty in ethnic studies.