This article describes the initial phase of a study where a sample of 72 questionnaires have been distributed to people who identified themselves as Internet users that participate in e-communities for business purposes the data collected where analyzed. The purpose of the research was to investigate the perceptions of online buyers in Greece and study their online behavior when participating i...

In today's world, Public expenditures on health are one of the most important issues for governments. These increased expenditures are putting pressure on public budgets. Therefore, health policy makers have focused on the performance of their health systems and many countries have introduced reforms to improve the performance of their health systems. This study investigates the most important ...

Although business executives remain skeptical about the extent of payoffs from investment in information technology (IT), strategic alignment or the alignment of information systems strategy with business strategy continues to be ranked as one of the most important issues facing corporations. In this paper, we report on the results of a process-level study to investigate the relationship betwee...

Mobile Ad hoc networks (MANET) allow a set of wireless hosts to exchange information without any special infrastructure. The projct entitled “Energy Optimization in Manets using On-Demand Routing Protocol” motivates the need for energy management in ad hoc wireless networks. Limited battery power is one of the most important issues in mobile ad hoc network as the mobile nodes operate in limited...

As we know that the online mining of streaming data is one of the most important issues in data mining. In this paper, we proposed an efficient one.frequent item sets over a transaction-sensitive sliding window), to mine the set of all frequent item sets in data streams with a transaction-sensitive sliding window. An effective bit-sequence representation of items is used in the proposed algorit...

Continuing the Push for Cost Reductions The single most important issue in health care is eliminating unnecessary medical spending. Health costs have traditionally increased at 1% to 2% annually above the growth of the economy. Long-term financial security requires the growth in cost to slow to economic growth or less. With about one-third of medical spending estimated to be wasted, achieving l...

We use the Wiener-Hopf equations and the Yosida approximation notions to prove the existence theorem of a system of nonlinear mixed implicit equilibrium problems SMIE in Hilbert spaces. The algorithm for finding a solution of the problem SMIE is suggested; the convergence criteria and stability of the iterative algorithm are discussed. The results presented in this paper are more general and ar...