This paper addresses possible Distributed Denial-of-Service (DDoS) attacks toward the wireless Internet including the Wireless Extended Internet, the Wireless Portal Network, and the Wireless Ad Hoc network. We propose a conceptual model for defending against DDoS attacks on the wireless Internet, which incorporates both cooperative technological solutions and economic incentive mechanisms buil...

This document presents the challenges the CEP market (Courier, Express and Parcel) currently faces. Market growth, customer expectations, organizational structures and technological advancement are explained as factors. Different states of dynamics regarding structures and decision making within this market are presented and explained. These states are static, semi-static and dynamic. A researc...

In 2010, a framework aiming to address strategic investment decisions on IT infrastructure was developed. It was based in Benefits Management principles and Enterprise Architecture concepts, being inspired by the emerging public cloud technological trend. Meanwhile, the public cloud concept did not materialise at the expected pace and other alternatives have emerged in the market, in particular...

The Digital Millennium Copyright Act has been criticized for granting too much power to copyright holders, offering them new technological controls that may harm the public interest. But, by considering this exclusively as a copyright issue, we overlook how the DMCA anticipates a technological and commercial infrastructure for regulating not only copying, but every facet of the purchase and use...

  One of an important factor in the success of organizations is the efficiency of knowledge flow. The knowledge flow is a comprehensive concept and in recent studies of organizational analysis broadly considered in the areas of strategic management, organizational analysis and economics. In this paper, we consider knowledge flows from an Information Technology (IT) viewpoint. We usually have tw...

This paper provides information on the economic impact of the transition from print to electronic journals in an academic library. The technological orientation of the university and a robust network infrastructure have made it possible for Drexel to make this transition more quickly than most, if not all, U.S. academic libraries. Shifts in costs occur in all budget areas: capital (space and ne...

Teleradiology consists of a set of added-value telematic services, implemented over an advanced telecommunications infrastructure and supported by different information technologies and related applications. The main goal of teleradiology is to provide different levels of support for remote diagnostic imaging procedures. This paper considers technological advances in this important area, includ...

The hydrological scienti c and operational communities are faced with new challenges. There is a demand for detailed water information for large regions and new environmental issues to deal with, which request advanced technical infrastructure merged with up-dated hydrological knowledge. Traditionally, the hydrological community is disaggregated. In this paper we suggest a collaborative approac...