Physical dependence is the state of the body when it becomes so dependent on a drug that the body cells cannot function without it. Withdrawal may lead to complications ranging from headache, vomiting , nausea to delirium, convulsions etc. substances which are capable of producing Physical dependence should not be stopped suddenly but the dose should be lowered gradually. 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.
Last date updated on September, 2014