The Institute for Scientific Information (ISI) has just completed such an analysis focusing on scientific output of U.S. states and the District of Columbia for 1979, 1983, and 1987. The results are presented in the accompanying table and map.
For each year, the total number of indexed items for each state (articles, reviews, notes, and letters) was recorded from ISI’s online database SciSearch, which now covers more than 4,000 significant journals of science.
If a paper listed an author from a particular state, the item was counted for that state. Because authors from different states co-wrote single papers, the totals for each year are less than the sum for the states. The percentage share of representation was calculated by dividing the total items for each state by the total of U.S. articles indexed that year on SciSearch. The raw scores are given for each year in the table, as are ...
