While deforestation of tropical ecosystems has been shown to have significant impacts on terrestrial habitats, its effects on aquatic habitats are poorly studied. Deforestation dramatically reduces the input of woody debris to streams, and given the importance of large woody debris to fish communities in temperate streams, this might be one mechanism by which logging could affect aquatic ecosys...

This paper describes preliminary work on validating process definitions by comparing a process definition to event streams derived from an actual execution of that process. The goal of this work is to find and remove discrepancies in the process definition before using that definition as the basis for various forms of analysis and decision making. The paper outlines important issues that need t...

Traffic flow might be limited by cross-traffic which has priority. A typical example of such a situation is location where cyclists or pedestrians cross stream car traffic. Splitting the into two separate sub-streams (for instance left–right and right–left) can increase capacity main stream. This because it no longer necessary to have sufficiently large gap in both simultaneously. paper introdu...

The use of methane as one the cleanest energy sources has attracted significant public awareness, and production processes with less environmental impact than fracking are receiving considerable attention. Catalytic hydrocracking plastic materials been considered a potential clean alternative. However, catalysts that convert heterogeneous feeds into single product under industrially relevant co...

Communication environments are becoming increasingly heterogeneous. This imposes new challenges on communication support for multimedia and collaborative applications. AMnet (Active Multicasting Network) provides multi-point communication support for large-scale groups with heterogeneous receivers. Active Multicasting nodes inside the network include so-called QoS filters that remove informatio...

background: hiv/aids control are one of the most important goals of the health systems. the aim of this study was to determine how hiv/aids control was initiated among policy makers' agenda setting in iran.   methods: a qualitative research (semi-structured interview) was conducted using kingdon's framework (problem, policy and politics streams, and policy windows and policy entrepreneurs) to a...

In recent years, new applications emerged that produce data streams, such as stock data and sensor networks. Therefore, finding frequent subsequences, or clusters of subsequences, in data streams is an essential task in data mining. Data streams are continuous in nature, unbounded in size and have a high arrival rate. Due to these characteristics, traditional clustering algorithms fail to effec...