"Particulate Matter (PM), which consists of suspended and sinking particles, is one of the most important constituents in seawater because it is related to carbon export flux and cycling of trace elements in the ocean. PM in the open ocean comprises a complex mixture of living and dead cells, excretory products, detrital matter and amorphous aggregates. To better understand production and fate of PM, and its biogeochemical roles such as trace metal-particle interactions, characterization of PM from different geochemical aspects is important; ex. chlorophyll a has been globally measured as an indicator of phytoplankton biomass (or living PM). Ligands in PM are important components in PM because ligands play a role as interface to trace metal-particle interaction.
High-impact journals are those considered to be highly influential in their respective fields. The impact factor of journal provides quantitative assessment tool for grading, evaluating, sorting and comparing journals of similar kind. It reflects the average number of citations to recent articles published in science and social science journals in a particular year or period, and is frequently used as a proxy for the relative importance of a journal within its field. It is first devised by Eugene Garfield, the founder of the Institute for Scientific Information. The impact factor of a journal is evaluated by dividing the number of current year citations to the source items published in that journal during the previous two years.
Last date updated on July, 2014