Constance Williams (right), a graduate student in the School of Art, discusses Triptych, a series of three small porcelain sculptures (on wall) that mimic natural formations such as shale or fungi, with Carol Burkholder (left) and Elizabeth Concannon (center). Triptych was recently installed and dedicated at the Mary Ryder Home, 4361 Olive St., a residential-care facility for indigent seniors. Also installed were works by Takashi Horisaki, Michele Ryker-Owens and the team of Elizabeth Fesser and Hoang Nguyen.