By Ecosphere I mean the whole Earth ,a deep magma sediment layer, an atmospheric layer, a water layer, the biotic communities at the surface, together with their contained assemblages of organisms - the biotic communities that have evolved and within which organisms are intricately linked. When left to operate in its timeless old way, the Ecosphere has proved itself to be an intensely stable and generative system, but necessarily supported by an external source of energy, the Sun.
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, 2020