CST professor leads effort to turn off, dim or block building lights Dr. Maria Andreina Pacheco shares how CST and CLA are helping to reduce window strikes in this article. The shades in the Science Education Research Center (SERC) are programmed to close from 12 am through 6 am to help prevent disorientation in migrating birds. Staff in Gladfelter (l) and Mazur (r) Halls are working hard to encourage people to close their shades at night.