The representational gap between formal mathematics and most users of digital mathematics resources is a challenge for any approach to mathematical knowledge management which aims to combine the benefits of formal and informal mathematics. In this chapter we study this gap in the context of a digital library of mathematics based on the Mizar Mathematical Library and make recommendations for imp...

The Digital Divide has been defined as a gap between those with access to new information technologies and those without. The term is also used to characterize the disparity between those who can effectively use information technology and those who cannot. This paper first explores the digital divide within the United States (U.S.) and worldwide. Factors contributing to the widening of the gap ...

This paper discusses the gap created by an international digital divide in Africa. The paper focuses on bridging the digital divide that exists between the developed countries and Africa, especially in the use of the internet and Global System Mobile (GSM) communication services. Issues like bridging the international digital divide, digital divide and Africa, bridging the digital divide in Afr...

Leaf area index (LAI) is one of the most important variables required for modelling growth and water use of forests. The implementation an approach to estimate LAI from digital pictures (LAID) has recently been advanced in Australia using digital image capture and gap analysis, which employs a novel methodology (Macfarlane et al 2006). This technique uses upward-looking wide-angle digital photo...

Results from a national representative telephone survey of Americans in 2000 show that Internet and mobile phone usage was very similar, and that several digital divides exist with respect to both Internet and mobile phone usage. The study identifies and analyzes three kinds of digital divides for both the Internet and mobile phones—users/nonuser, veteran/recent, and continuing/dropout—and simi...

Despite the widespread adoption of new information technologies, a “digital divide” still exists, excluding many from enjoying the benefits, especially those who live in developing countries. A digital divide is defined as an access gap that is measured by the disparities in subscriber penetration levels and technological gaps reflected in technological discrepancies between countries and regio...

Digital airborne cameras play a significant role for aerial Photogrammetry development from analog to full-digital age. Because of the gap between digital sensor performance and Photogrammetry request, digital airborne also becomes the bottleneck of full-digital approach. In this paper, we present a design of twice-imaging airborne camera system with distributed sensors based on film camera, an...