|Embolism is a situation where foreign particles are causes blockage to blood vessels. Require oxygen to work blood tissues and organs. If same situation happens to major organs like brain, heart and lung they will fail or loss its function. Embolism causes these two severe illness Stroke and pulmonary embolism. Stroke is nothing but blood supply to brain is less or not supplying. Pulmonary embolism is blood supply to lungs is less or not supplying.
High-impact journals are those considered to be highly influential in their respective fields. 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.