|
Science in Japan, 1997-2001
Japan's world share of science and social-science papers over the last five years, expressed as a percentage of papers in each of 21 fields in the ISI database. Also, Japan's relative citation impact compared to the world average in each field, in percentage terms.
|
Field |
Percentage
of papers from Japan |
Relative
impact compared to world
|
| Materials Science |
15.15 |
-1 |
| Physics |
14.35 |
-5 |
| Pharmacology |
13.10 |
-25 |
| Chemistry |
12.30 |
-3 |
| Biology & Biochemistry |
11.29 |
-17 |
| Agricultural Sciences |
10.70 |
-9 |
| Microbiology |
10.15 |
-31 |
| Molecular Biology |
9.83 |
-18 |
| Engineering |
9.62 |
-14 |
|
**<---
Japan's overall percent share, all
fields: 9.48 --->** |
| Neurosciences |
9.40 |
-28 |
| Computer Science |
9.18 |
-59 |
| Immunology |
8.88 |
-15 |
| Clinical Medicine |
8.75 |
-21 |
| Plant & Animal Sciences |
7.44 |
-10 |
| Space Science |
6.81 |
-10 |
| Mathematics |
5.57 |
-21 |
| Geosciences |
5.33 |
-15 |
| Ecology/Environmental |
3.46 |
-29 |
| Psychology/Psychiatry |
2.02 |
-50 |
| Economics
& Business |
1.75 |
-43 |
| Social
Sciences |
1.02 |
-28 |
Between 1997 and 2001, ISI indexed 336,162 papers that listed at least one author address in Japan. Of those papers, the highest percentage appeared in journals classified under the heading of materials science. As the right-hand column indicates, the impact, or citations-per-paper average, for materials-science papers from Japan was just 1% below the world average for the field during the five-year period (an average of 1.95 citations per paper for Japan versus a world baseline figure of 1.97 cites per paper). Although the impact of Japanese papers was below the world average in all the fields shown above, performance was comparatively strong not only in materials, but in physics, chemistry, agricultural sciences, and space science.
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