If you want to protect your ride, today is the day to register your bicycle with UA Parking and Transportation Services. Beginning at 10 a.m., representatives from the department will be on the UA Mall near the old Chemistry building to register bikes. The registration period ends at 2 p.m. For more information, contact PTS at 626-7437.

Learn while you grub! The Brown Bag Seminar joins forces with the Public Health Grand Rounds today in the Arizona Health Sciences Center, Room 5403. Rebecca Dahl, director of the Human Subjects Protection Program, speaks about the latest changes to federal policies pertaining to human subject research and experimentation. Refreshments will be served at the seminar, which runs from noon to 1 p.m. Contact Erna M. Heckele at 626-3827, or e-mail her at ernamh@u.arizona.edu for more information.

As the UA campus continues to change and expand, university administration continues to provide opportunities to follow the progress. Go to the Architecture Centrum from 1 p.m. to 3 p.m. for a comprehensive campus plan meeting. For more information, contact Campus Facilities Planning at 621-1099.

Semper Fi for life? The U.S. Marine Corps motto, which means "always faithful," could be your calling after college. Representatives from the corps will be at the Dr. Martin Luther King Jr. building, Room 100, from 4 p.m. to 6 p.m. to present opportunities for college graduates or anyone in the U.S. Marine Corps. Contact Capt. John D. Knutson at 602-257-0310, extension 0420, for more information.

For a taste of life behind bars, you don't need an entry in Police Beat for drug possession or reckless driving. Instead, just drop by the Center for Creative Photography at 5:30 p.m. for a showing of "The Farm," part of "Prison Life: A Documentary Film Series." The movie explores Angola Prison in Louisiana, the largest maximum-security prison in the United States. Michael Mulcahy, assistant director of the department of media arts and director of "Security, Custody and Control," will introduce the movies. For more information, contact the CCP at 621-7968 or e-mail a staff member at koenigs@ccp.library.arizona.edu.