The following is a partial list of scientific journals. There are thousands of scientific journals in publication, and many more have been published at various points in the past. The list given here is far from exhaustive, and contains the most influential, currently publishing journals in each field. As a rule of thumb, each field should be represented by more or less ten positions, chosen by their impact factors and other ratings. Note: there are many science magazines that are not scientific journals, including Scientific American, New Scientist and others. They are not listed here.