|Stereotactic radiation therapy is a specialized therapeutic method used to target the tumor cells. This is an extra beam radiation therapy which helps to deliver the radiation doses with extreme accuracy. This method can specifically detect and kill small tumor cells. The treatment has several advantages such as usage of narrow beams, well defined targeting and precision etc. This is used in treatment of gliomas brain metastases, meningiomas, acoustic neuromas, arteriovenous malformations.
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.