In this volume are collected essays contributed by biochemists, biologists and chemists from all over the world who are prominent in their respective domains. The themes dealt with in these essays are related to different aspects of today's respective sciences including reminiscence into the past, problems we are facing today and the outlook for the future. This collection itself will undoubtedly provide a source of enlightenment not only for accomplished researchers but also to those young students who are about to embark upon their research activities. Originally, this project was initiated...