a study was undertaken in southern peninsular state of india, the tamil nadu state, to assess the farmers’ “willingness to pay” (wtp) for receiving annual health care services to their dairy animals. the districts of the state were categorized as “livestock developed” (ld) and “livestock under developed” (lud) based on initial base line developed. contingent valuation (cv) approach was used to ...

A Protocol Reference Model is an abstraction of the communication subsystem of a system. Thus, it is appropriate to focus on the protocol reference model when examining the issue of secure communications. In this paper, we discuss some issues in incorporating security services into a protocol reference model. The security services considered are authentication, con dentiality, integrity and acc...

This article reports the results of a survey of reference librarians in public and academic libraries of various sizes in the United States, asking them about their experiences with and attitudes towards the use of digital and networked technologies and resources in reference work. A total of 648 responded. In general, respondents were positive and optimistic in their outlook, but not unreserve...