The title of this book, Learning Discrete Mathematics with ISETL raises two issues. We have chosen the word "Learning" rather than "Teaching" because we think that what the student does in order to learn is much more important than what the professor does in order to teach. Academia is filled with outstanding mathematics teachers: excellent expositors, good organizers, hard workers, men and women who have a deep understanding of Mathematics and its applications. Yet, when it comes to ideas in Mathe matics, our students do not seem to be learning. It may be that something more is needed and we...

This issue of Surgical Oncology Clinics of North America is devoted to the treatment of Colorectal Cancer. Editors Nancy Baxter, MD and Marcus Burnstein, MD have assembled some of the top experts in the field to review this important topic.Articles in this issue include: Colonoscopy: What are we missing?; Imaging in rectal cancer: MRI vs. ERUS; Local Excision for Rectal Cancer; Controversies in Neo-adjuvant treatment for rectal cancer; Management of the complete response; Controversies in laparoscopy for CRC; Colon resection - is standard technique adequate?; Quality Assurance in CRC surgery;...