|
Science in Japan, 2000-04
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 Thomson Scientific database. Also, Japan's relative citation impact compared to the world average in each field, in percentage terms.
[See related
information below table.]
|
Field |
Percentage
of papers from Japan |
Relative
impact compared to world
|
| Materials Science |
14.67 |
+4 |
| Physics |
14.39 |
-1 |
| Pharmacology |
12.72 |
-24 |
| Chemistry |
11.79 |
-1 |
| Biology & Biochemistry |
10.93 |
-13 |
| Molecular Biology |
10.10 |
-13 |
| Agricultural Sciences |
10.06 |
-14 |
| Microbiology |
9.92 |
-29 |
| Engineering |
9.58 |
-8 |
|
**<---
Japan's overall percent share, all
fields: 9.38 --->** |
| Neurosciences & Behavior |
9.21 |
-25 |
| Immunology |
8.79 |
+5 |
| Clinical Medicine |
8.60 |
-19 |
| Computer Science |
8.55 |
-47 |
| Plant & Animal Sciences |
7.64 |
-2 |
| Space Science |
7.02 |
+3 |
| Geosciences |
6.25 |
-7 |
| Mathematics |
5.76 |
-21 |
| Ecology/Environmental |
3.98 |
-25 |
| Psychology/Psychiatry |
1.96 |
-39 |
| Economics & Business |
1.91 |
-49 |
| Social Sciences |
0.98 |
-30 |
Between 2000 and 2004, Thomson Scientific indexed 353,540 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, followed closely by physics. As the right-hand column indicates, the impact of Japanese materials-science research was 4% above the world average in the field (2.40 cites per paper for Japan versus 2.30 cites for the world). Relative-impact performance was also comparatively strong in immunology (5% above the world mark) and space science (3% above). In both chemistry and physics, Japanese papers scored at just 1% below the world average.
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