Prolactin is a protein secreted from the pituitary gland in response to eating, sexual intercourse, estrogen treatment, ovulation, and breastfeeding. It is also involved in metabolism regulation, immune system regulation and development of pancreas. Its pincipal role is to stimulate lactation in females after childbirth and maintain milk supply during breastfeeding.The impact factor of journal provides quantitative assessment tool for grading, evaluating, sorting and comparing journals of similar kind. It reflects the average number ofÂ citationsÂ to recent articles published inÂ science and social science journals in a particular year or period, and is frequently used as aÂ proxyÂ for the relative importance of a journal within its field. It is first devised byÂ Eugene Garfield, the founder of theÂ 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