A study of demographic models helps to understand the observed phenomena in a better way and to implement intervention programs and population policies. The main objective of this study is to develop some models on demographic variables viz....

The notion of what constitutes matter in fact is not static but evolves with time, changing in step with technological advances or more precisely with the growth in the power of the sources of energy that become available to the experimenter....

Feed shortage is an acute problem for livestock production in developing countries. Presently ruminant animals are reared by feeding only rice straw which is very poor in quality. Feeding value of rice straw can be improved by supplementation of aquatic plants of which water hyacinth (WH- Eichhornia crassipes) ranks first....

Helicoverpa armigera (Hubner) is one of the most important insect pest causes serious damage to chickpea crop. Attempts were made to develop a biopesticide by using an insect pathogen Helicoverpa nuclear polyhedrosis virus (HNPV) to control the malicious insect chickpea pod borer. The best adjuvant was HNPV + chickpea flour (0....