Reply to Leach and Evans

Reply to Dr. Evans re covert video surveillance.

Reply to Evans and Bar-Oz et al.: Recovering ecological pattern and process in Ancient Egypt.

Our recent paper used artistic depictions of animals and fossil evidence to examine the community-level effects of local extinction events over 6,000 y of Egyptian history (1). We found that local extinctions were nonrandom, that changes to community structure (quantified by the species predator/prey ratio) seemed to correspond to local aridification pulses, and that the decline in species rich...

Reply to Letter to the Editor by Griffiths et al. commenting on Evans & Allen

to the number in which no significant effect was found has been criticised by a number of reviewers and is not the approach advocated by the Cochrane Collaboration. Although we have outlined above a number of points with which we take issue in the Evans and Allen review, we would like to conclude by stating that we do not think the differences between our position and theirs are as great as mig...

DE-LEACH: Distance and Energy Aware LEACH

Wireless sensor network consists of large number of tiny sensor nodes which are usually deployed in a harsh environment. Self configuration and infrastructure less are the two fundamental properties of sensor networks. Sensor nodes are highly energy constrained devices because they are battery operated devices and due to harsh environment deployment it is impossible to change or recharge their ...

Improvement on LEACH: Seeded LEACH-KED

This paper summarizes the work used to improve low energy adaptive cluster hierarchy (LEACH) algorithm and proposes a new protocol “Seeded LEACH-KED” in order to increase the network lifetime and then compare its result with the LEACH , LEACH-C and LEACH-KED. Prolonging network lifetime is the way to provide energy efficient WSNs. This research is inspired by the fact that LEACH occupies a very...