The NIH Library now offers publication analysis services to NIH staff. As the newest addition to the Library’s range of custom information services, our publication analysis services center on the related areas of bibliometrics, altmetrics, and portfolio analysis.
The Greek letter π is the symbol for the irrational number representing the ratio of the circumference of a circle to its diameter. It is approximately 3.1415926. Pi Day is an annual celebration on March 14th (3/14), with this year’s being a very special Pi Day (3/14/15).