Automated simplification of trigonometric expressions is an important problem that hasn’t been completely solved by current computer algebra systems. This paper presents a number of unique prescriptions for the ordering of some trigonometric transformation rules, which have been derived by observing how human experts follow their intuitive rules. We have implemented the procedure in Lisp becaus...

Neuroradiology, we are delighted to announce that Dr. Dae Chul Suh is now the editor-in-chief of the Neurointervention. He is one of initial members of this society and worked as the chief editorial member in its early period. As the society wishes this journal to be more impactful, he was obliged to be appointed as the Editor-in-Chief of the journal. Dr. Chang-Woo Ryu and Dr. Dong Joon Kim wil...

Functional illiteracy is a problem often overlooked by nurses. Although the average adult in the United States cannot read above the eighth-grade level, most patient education materials are written on a high-school or college reading level. If patients cannot read educational materials, then there is little hope of them using or understanding the information. Strategies for improving the readab...