Among the many aspects of biological conservation, this book deals with the conservation of productive resources rather than the preservation of natural environments. The applications in this book are mainly to the commercial fishery and forestry industries, rather than to the recreational uses of natural resources....

Recorded ground motions affected by forward directivity effects indicate that velocity pulse may arrive at a relatively later stage of the record even though it is believed to arrive at the beginning of velocity time-history. An attempt has been made to correlate arrival instant of velocity pulse with a few seismological and pulse parameters....

An epidemiological survey was done among the panmasala chewers in North Bengal tea garden and Kolkata and suburbs. A total no of 1514 subjects who had attended in different camps with panmasala/gutkha chewing habit over a period of 2 years time were interviewed and clinically examined for mucosal lesion....

Before the age of Industrial Revolution, the great Asian civilisations - whether located in the Middle East, India, South-East Asia, or the Far East - constituted areas not only of high culture but also of advanced economic development. They were the First World of human societies....