NBC Risks Current Capabilities and Future Perspectives for Protection Daniel W This fourth volume of PCCR Jr This fourth volume of PCCR starts with a review on RAS pathways and how they impinge on the cell cycle (chapter 1) and use this to study the dynamical behavior of competing species when the competition is strong The main areas covered were: general approach and NBC risks pharmacoprotection and treatment skin protection and decontamination pharmaceutical aspects of protectants environmental aspects of NBC disarmament Acknowledgments The editors would like to express their thanks to NATO for having made this publication possible and all the participants of the conference who contributed their publications the editors would like to thank Constantin Mircioiu and his staff for their assistance and support during all stages of the conference and editing