A brush with science Although their patient appears a wee bit light-headed, Utah girls cluster around an operating table. Wielding surgical instruments was part of the "Expanding Your Horizons" conference Saturday, sponsored by the Utah Math Science Network, designed to give more than 1,000 of Utah's female junior and senior high school students a taste of technology. Utah women have traditionally taken fewer science and math classes, and the network is working to provide girls with female role models in high-tech fields. More than 75 professionals in fields such as archaeology, engineering, business, medicine, physics, radiation therapy, mathematics and chemical safety provided hands-on career glimpses during the conference at the U.