This article presents the characteristics of heaps resulting from coal exploitation in terms possibility their development for industrial facilities. The chances soil improvement and existing threats were indicated, emphasising risk self-ignition. most effective technologies are dynamic or impulse compaction, which allows deep obtaining an appropriately rigid load-bearing subsoil. homogeneity s...

Male praying mantises are forced into the ultimate trade-off of mating versus complete loss of future reproduction if they fall prey to a female. The balance of this trade-off will depend both on (1) the level of predatory risk imposed by females and (2) the frequency of mating opportunities for males. We report the results of a set of experiments that examine the effects of these two variables...

The present experiments provided quantitative results on the static friction coefficient generated by bare foot and foot wearing socks sliding against the tested tiles. Furthermore, the analysis of the test data gave information about the effectiveness of the tested cleaners and detergent. A better knowledge of the parameters which influence friction coefficient would allow the proper selection...

This study examines how bloggers establish and enhance the credibility of their blogs through a series of blogging practices. Based on an analysis of interviews with 22 independent bloggers who blog on a range of topics, we present audience-aware credibility as a theoretical construct. Audience-aware credibility is defined as how bloggers signal their credibility based on who they think their a...