Myopia is also known as short or near sightedness. In this the person has difficulty in viewing the far objects but can see the near objects clearly. In this the light entering the eye is not focused on the retina but in front of it so the image is also formed in front of the retina. It occurs due to incorrect bending of the light rays to transmit image to the brain.
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