We consider the problem of specifying the design-based error covariance structure in small area modeling with survey data because of too many unknown design parameters. As a compromise, it is customary to treat the estimated covariance as known although undesirable because of its instability, i.e., relative variance of this estimate could be high, and as a result, it could cause serious underes...

The current paper explores designing a web information retrieval system regarding the searching behavior of users in real and everyday life. Designing an information system that is closely linked to human behavior is equally important for providers and the end users.  From an Information Science point of view, four approaches in designing information retrieval systems were identified as system-...

this study aimed to identify and test expectancy motivational model as a theoretical framework to explain the reasons motivating expected information consumer’s behavior for the selection and use of document delivery services of shahid chamran university, ahvaz. in this study, explanatory survey method was used. in order to test the hypotheses and analysis of model’s data, covariance structural...

This review article investigates a comprehensive description of the factors, methods, strategies, approaches and prerequisites influencing in vitro micropaopagation and the amount of their use across the world. The findings presented here are the results of the study of several hundred papers published all over the world. Tissue culture techniques are routinely used for micropropagation. Enhanc...

Agriculture is the backbone of India’s economy as two-third of the population live in rural areas and directly or indirectly depend on agriculture for their livelihood. India’s food production has improved significantly during the last three decades due to all-round efforts but Indian agriculture is still facing a multitude of problems to maximize productivity to feed the continuously increasin...