This study analyzes the geographic spread of commercial Internet Service Providers (ISPs), the leading suppliers of Internet access. The geographic spread of ISPs is a key consideration in U.S. policy for universal access. We examine the Fall of 1998, a time of minimal government subsidy, when inexpensive access was synonymous with a local telephone call to an ISP. Population size and location ...

Figure. Colorectal cancer burden and access to primary health care, California. A vast majority of Californians (96%) live within a 30-minute drive of a federally qualified health center (FQHC). This is true for areas in both the top and bottom quintiles (96% and 93% respectively) based on the percentage of colorectal cancers (CRC) diagnosed at a late stage. There was no meaningful connection f...

Interfaces to access geographic data can be designed in a number of ways. When the design takes into consideration interoperability concerns, the software’s architecture becomes one of the main issues. In the interfaces that intend to be interoperable, the design often includes a module that is responsible for the interaction with the user, and another which implements the connection to the GIS...

Wireless sensor networks (WSN) have attracted much attention in recent years for its unique characteristics and wide use in many different applications. Routing protocol is one of key technologies in WSN. In this paper, the position-based routing protocols are surveyed and classified into four categories: flooding-based, curve-based, grid-based and ant algorithm-based intelligent. To each categ...

Paediatric endocrinology is a highly specialised area of clinical medicine with many experts with specific knowledge distributed over a wide geographical area. The European Society for Paediatric Endocrinology (ESPE) is an example of such a body of experts that require regular collaboration and sharing of data and knowledge. This paper describes work, developed as a corollary to the VOTES proje...

Perhaps the greatest development in rural communication technology in the middle of the 19 th century was an eight foot board tied to the back of a horse. The King Road Drag scraped along country roads leveling humps and filling potholes. 1 The flat roads permitted rural postal deliveries, the development of parcel post and eventually a flood of information from catalog companies and publishers...

Current geographical information applications increasingly require managing spatial data through the Web. Users of geographical information application need not only to display the spatial data but also to interactively modify them. As a result, the security risks that face geographical information applications are also increasing. In this paper, a secured framework is proposed. The proposed fr...