AbstructABR service relies on a feedback from the network, therefore i t strongly suffers from the long propagation delays characterizing satellite networks. In fact, i t has been shown that the high delay, in combination with high bandwidth, can deceive ABR sources and make them falsely believe that a break occurred somewhere in the path. Since ABR sources respond to breaks by reducing their c...

Despite wide-scale uptake of gamification in professional training generally, application in Teacher Professional Development (TPD) is still in its infancy. The few experiences reported hitherto mainly concentrate on fostering participation and engagement in the training intervention itself. By contrast, we believe that gamification of TPD can and should have a broader scope, helping to enhance...

Weather continues to be a significant source of delay for aircraft destined to and departing from the New York metropolitan area, with weather delays through the first half of 2004 reaching levels not seen since 2000. In Allan et al. (2001), it was shown that total arrival delays on days with low ceiling and visibility at Newark Airport (EWR) averaged 210 hours, increasing to an average of 280 ...

It is not always straightforward to implement a network that is robust enough to be functionally independent of communication delay. In order to specify and verify so called Delay Insensitive networks, numerous models and formalisms have been developed. In this paper we analyze one of the most expressive models. We show how based on rewrite rules we can compute, rather than invent parts of a ne...

In sensor networks communication by broadcast methods involves many hazards, especially collision. Several MAC layer protocols have been proposed to resolve the problem of collision namely ARBP, where the best achieved success rate is 90%. We hereby propose a MAC protocol which achieves a greater success rate (Success rate is defined as the percentage of delivered packets at the source reaching...

We investigate the fundamental relationship between node density and transmission delay in Large-scale wireless networks with unreliable links from percolation perspective. Previous works[7][2][6] have already showed the relationship between transmission delay and distance from source to destination. However, it still remains as an open question how transmission delay varies in accordance with ...

There is wide agreement that teacher professional development (TPD) is a necessary element in educational change, especially for the more effective application of technology to enhance learning. The research literature reports many examples of successful TPD but there remain many challenges to wider and deeper success in the variety of different contexts. Discussion by the thematic working grou...

In traditional approaches to energy-efficient routing, a node needs to receive routing messages from all of its neighbors to be able to select the best route. In this work, we propose a technique that enables the best route selection based on exactly one message reception. We call the resulting routing protocol O(1)-reception. In O(1)-reception, each node delays forwarding of routing messages (...

LibQA is a quality assurance tool for VHDL synthesis and simulation models which also performs timing characterization. The synthesis model is translated into an FSM, then graph exploration generates stimuli for VHDL and electrical simulation. Function, propagation delay, timing constraint violation, and hazard response are all tested.

During the past 20 years, a significant body of literature has emerged focusing on the application ofDabrowski's theory ofpositive disintegration (TPD) to the study ofgifted individuals. Although much of this literature is prescriptive, some research reports spanning this time period are available. A perusal of research on TPD's applicability to gifted individuals indicates that the focus has b...