If acute inflammation condition is not resolved it leads to the condition of chronic inflammation. Some of the features of acute inflammation also lead to chronic inflammation such as increase in blood flow and increase in capillary permeability. Accumulations of the white blood cells are also observed. In an infected tissue neutrophils are the ones which are recruited first by the body but soon they are replaced by the macrophages and the lymphocytes. Thus these are the primary cells in case of chronic inflammation. The functions of macrophages are to phagocytize the pathogens at the site of inflammation.
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 September, 2014