Copyright protection exists from the moment a work is created in a fixed, tangible form of expression. The copyright immediately becomes the property of the author who created the work. Only the author, or those deriving their rights through the author, can rightfully claim copyright. In the case of works made for hire, the employernot the writeris considered the author.
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 June, 2014
