Sci-Bytes> Science in Portugal, 2005-09
Week of May 1, 2011
Portugal’s world share of science and social-science papers over a recent five-year period, expressed as a percentage of papers in each of 21 fields in the Thomson Reuters database. Also, Portugal’s relative citation impact compared to the world average in each field, in percentage term.
| Field | % papers fr. Portugal | Impact vs. world |
|---|---|---|
| Environment/Ecology | 1.23 | -3 |
| Plant & Animal Science | 1.06 | +6 |
| Materials Science | 1.01 | -9 |
| Agricultural Sciences | 1.00 | +21 |
| Mathematics | 0.96 | -11 |
| Microbiology | 0.88 | -15 |
| Chemistry | 0.82 | -8 |
| Space Science | 0.81 | +98 |
| Engineering | 0.78 | Even |
| Computer Science | 0.76 | -8 |
| Physics | 0.73 | +24 |
| Biology & Biochemistry | 0.72 | -22 |
| Economics & Business | 0.69 | -38 |
| Portugal's overall percent share, all fields: 0.67 | ||
| Geosciences | 0.59 | -12 |
| Molecular Biology & Genetics | 0.59 | -19 |
| Pharmacology & Toxicology | 0.52 | -3 |
| Immunology | 0.46 | -21 |
| Neuroscience & Behavior | 0.44 | +15 |
| Clinical Medicine | 0.34 | +9 |
| Psychiatry/Psychology | 0.31 | -46 |
| Social Sciences | 0.28 | -31 |
Between 2005 and 2009, Thomson Reuters indexed 34,797 papers that listed at least one author address in Portugal. Of those papers, the highest percentage appeared in journals classified under environment/ecology, followed by plant & animal science. As the right-hand column shows, Portugal’s impact (cites per paper) score in environment/ecology was just 3% below the world average in the field (4.59 cites per paper for Portugal, versus the world mark of 4.72). On the other hand, Portugal’s relative-impact scores were strong in other fields, notably space science, physics, and agricultural sciences. In engineering, the impact of research from Portugal-based authors happened to match the world figure exactly: 4.20 cites per paper.
SOURCE: InCitesTM Global Comparisons, Thomson Reuters.
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