Health/Science calendar

Shark's plight The New England Aquarium launches its run of the IMAX movie "Island of the Great White Shark" with a talk by Richard Theiss, the filmmaker, and Mauricio Hoyos, a Mexican shark biologist. The movie focuses on the Mexican island that serves as one of the last sanctuaries for great white sharks. At 7 p.m. Reservations required at www. neaq.org (click on "attend a lecture").

Nano science Three days of nanotech workshops and lectures at Brown University will address topics such as nanomaterials' use in batteries, nanolithography, and the field's social and economic value. Beginning at 9 a.m. each day. Go to brown.edu/imni for details and location.

Medieval discrimination A lecture by Monica Green, a Countway Fellow at Harvard this year, addresses the medieval origin of women's status as non-authorities in medicine, looking specifically at gynecology and obstetrics. From 4:30 to 5:30 p.m., Countway Library, 10 Shattuck St. To RSVP, e-mail ARM@hms.harvard.edu.

Mind, body, spirit Diane Patrick, the Commonwealth's first lady, speaks about her experience with depression at the Dimock Center's 12th Annual Women's Health Forum, featuring interactive, bilingual workshops about cancer, diabetes, and other health issues. Blood pressure and diabetes screenings by doctors; clinicians available for questions. From 11 a.m. to 4 p.m., Dimock Center, 55 Dimock St., Roxbury. Call 617-442-8800, ext. 1736.