nowadays, standard seems to be very important and necessary in all aspects of the life including reference services in libraries. this article is to survey the role of standards in electronic reference services and also considers some sample application instructions which are presented in the dupont- university. by the end, the guide for digital reference services which is called ifla is presen...

primary care physicians' visit services for diabetes management are now widely delivered in china's rural public health care. current studies mainly focus on supply but risk factors from patients' view have not been previously explored. this study aims to present the utilization of rural primary care physicians' visit services for diabetes management in the last 12 months in southwestern china,...

the ability to discover services in mobile ad hoc network (manet) is a major prerequisite. cluster basedcross layer intelligent service discovery for manet (cbisd) is cluster based architecture, caching ofsemantic details of services and intelligent forwarding using network layer mechanisms. the cluster basedarchitecture using semantic knowledge provides scalability and accuracy. also, the mini...

introduction due to its multifunctional nature agriculture play important roles in ecological processes such as carbon sequestration, flood control, groundwater recharge, nutrient cycling, and purifying water, soil and air in addition to providing food, feed and fiber. these cover almost all ecological services provided by natural ecosystems, including provisioning services, regulating services...

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 ...