spleen is a wedge-shaped organ lying mainly in the left upper quadrant (left hypochondrium and partly in the epigastrium) and is protected by the left 9thto 11th ribs. It is soft, highly vascular and dark purple in colour. Size and weight vary from person-to-person but on average is around 2.5 cm thick, 7.5cm broad and 12.5 cm in length. The spleen has two poles (superior and inferior), three borders and two surfaces (diaphragmatic and visceral). It is enclosed by a thin capsule, which is easily ruptured.
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