|Injuries to the nail leads to the separation of the nail from the nail bed. They are complex wounds to repair. Even after proper repair it may result in permanent deformity. The complex structure of nail involves three different layers, The nail bed, The nail itself is the hard substance on the back of the finger or toe. The cuticle and lateral nail are also part of the nail.
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.