|The male reproductive system consists of different sex organs and these all form the human reproductive process. In this type of reproductive system, these sex organs are situated outside the body, near to the pelvic region. The main male sex organs are the penis and the testicles which yield semen and sperm, which, as part of sexual intercourse. Further, fertilize an ovum in the female's body. The fertilized ovum (zygote) develops into a fetus, which is later born as a child. Conforming equivalent among females is the female reproductive system. 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.