The mass of carbon stored as organic matter in terrestrial systems is sufficiently large to play an important role in the global biogeochemical cycling of CO2 and O2.Field measurements of radiocarbon-depleted particulate organic carbon (POC) in rivers suggest that terrestrial organic matter persists in surface environments over millennial (or great

Evidence Based Library and Information Practice (EBLIP) is soliciting nominations for a special feature in our December 2007 issue.We will be featuring summaries of classic research studies that have impacted practice, had an influence on LIS researchers, and stood the test of time.We need your help to identify these classic studies in our field an

The operational cost-effectiveness of wireless sensor networks depends on the placement of heterogeneous nodes: base stations, sensor nodes, and relay nodes.To achieve the global optimality of minimum-cost heterogeneous node placement, we find the locations of base stations, sensor nodes, and relay nodes, simultaneously.The objective is to minimize