Three zero-order swales, each with a contributing drainage area of about 1 ha, were instrumented to measure pipeflows within the Caspar Creek Experimental Watershed in northwestern California, USA. After two winters of data collection, the second-growth forest on two of the swales was clearcut logged. The third swale remained as an uncut control. After logging, peak pipeflow was about 3.7 times...

We study an active underground economy that trades stolen digital credentials. In particular, we investigate keylogger-based stealing of credentials via dropzones, anonymous collection points of illicitly collected data. Based on the collected data from more than 70 dropzones, we present an empirical study of this phenomenon, giving many first-hand details about the attacks that were observed d...

This paper presents a causal logging scheme for the lazy release consistent distributed shared memory systems. Causal logging is a very attractive approach to provide the fault tolerance for the distributed systems, since it eliminates the need of stable logging. However, since inter-process dependency must causally be transferred with the normal messages, the excessive message overhead has bee...

The demand for timber products is facilitating the degradation and opening up of large areas of intact habitats rich in biodiversity. Logging creates an extensive network of access roads within the forest, yet these are commonly ignored or excluded when assessing impacts of logging on forest biodiversity. Here we determine the impact of these roads on the overall condition of selectively logged...

Sender-based message logging can considerably lower high failure-free overhead of receiver-based message logging resulting from synchronously logging each message into stable storage by using volatile memory of its sender as storage for logging. This beneficial feature can be obtained at the expense of extra communication costs required for allowing message senders to get receive sequence numbe...

It is well known that a large proportion of available logging residues intended for extraction will not reach the energy-conversion industry, because some are lost during transportation or left on the clear-felled area. However, there is little understanding of where logging residue losses occur in the supply chain. In this study, the distribution of logging residues for two methods (driedand f...

Message logging has long been advocated as offering better failure-free performance than coordinated checkpointing. On the contrary, we present a number of experiments showing that for compute-intensive applications executing in parallel on clusters of workstations, message logging has higher failure-free overhead than coordinated checkpointing. Message logging protocols, however, result in muc...

Checkpointing and logging are widely used techniques to provide fault tolerance for the distributed systems. However, logging imposes too much overhead on the processing to be a practi-val solution. In this paper, we propose a low-overhead logging scheme for the distributed shared memory system based on the lazy release consistency model. Unlike the previous schemes in which the logging is perf...

Selective logging may impact patterns of genetic diversity within populations of harvested forest tree species by increasing distances separating conspecific trees, and modifying physical and biotic features of the forest habitat. We measured levels of gene diversity, inbreeding, pollen dispersal and spatial genetic structure (SGS) of an Amazonian insect-pollinated Carapa guianensis population ...

Ecological communities including tropical rainforest are rapidly changing under various disturbances caused by increasing human activities. Recently in Cambodia, illegal logging and clear-felling for agriculture have been increasing. Here, we study the effects of logging, mortality and recruitment of plot trees on phylogenetic community structure in 32 plots in Kampong Thom, Cambodia. Each plot...