Neonatal Occipital Alopecia (transient neonatal hair loss) is a common alopecia that develops in the occipital area in the first few months of life. It was previously wrongly attributed to friction of the head on the pillow. The fetus normally undergoes synchronous shedding of scalp hair in the fifth month of fetal life. The regrown hair enters into the telogen phase in a wave from front to back, starting approximately 12 weeks before term. Most hair roots will have entered the anagen phase again before delivery. The occipital area is the last area in the scalp to enter the telogen phase and does not do so until birth. Therefore, shedding of hair in the first weeks of life is normal and the pillow, which is often blamed, only aids this shedding.
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 December, 2020