You could be sitting by a pond listening to a soothing summer evening concert sung by frogs. But you are actually in front of a computer, in the comfort of your home, office, or classroom, without annoying mosquitoes or biting flies. This performance is an interactive multimedia CD-ROM, the Digital Frog 2 (DF2), which is an anatomically precise computer simulation of a frog. DF2 has three segments: dissection, anatomy, and ecology. The anatomy segment compares amphibian and human anatomy and occ

Becton Dickinson's Falcon® HTS FluoroBlock Inserts So you're studying the movement of cells toward a chemical gradient. You'll do multiple time-consuming manipulations--cell scraping, transferring membrane inserts, manual fixation, staining, and microscope counting. Or will you? With a new "radiation opaque" membrane insert for real-time fluorescence studies, you could get your information directly in a matter of minutes. FluoroBlok is a proprietary colored PET membrane insert that fits i