Death of the cells in multicellular organisms to regulate the number of cells by programmed cell death is called as apoptosis. In this process caspases proteins breaks the cellular components , which leads to release of DNases which destroys the cellular DNA which leads to death of the cell.
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. 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 September, 2014