Document Type Profiles in Nature , Science , and PNAS : Journal and Country Level
, , und | 01. Sept. 2017
Über diesen Artikel
Article Category: Research Paper
Online veröffentlicht: 01. Sept. 2017
Seitenbereich: 27 - 41
Eingereicht: 12. Juni 2016
Akzeptiert: 17. Aug. 2016
DOI: https://doi.org/10.20309/jdis.201618
Schlüsselwörter
© 2016 Jielan Ding, Per Ahlgren, Liying Yang, Ting Yue
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.
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Science. Numbers of publications by document type.
| Year | Number of publications | Percentage | ||||||
|---|---|---|---|---|---|---|---|---|
| Document type | 1999 | 2004 | 2009 | 2014 | 1999 | 2004 | 2009 | 2014 |
| Article | 893 | 873 | 843 | 769 | 32.8% | 32.6% | 33.5% | 29.6% |
| Editorial Material | 609 | 490 | 520 | 683 | 22.3% | 18.3% | 20.7% | 26.2% |
| News Item | 534 | 787 | 611 | 679 | 19.6% | 29.3% | 24.3% | 26.1% |
| Letter | 388 | 281 | 257 | 230 | 14.2% | 10.5% | 10.2% | 8.8% |
| Book Review | 93 | 102 | 117 | 117 | 3.4% | 3.8% | 4.7% | 4.5% |
| Review | 78 | 51 | 54 | 59 | 2.9% | 1.9% | 2.1% | 2.3% |
| Correction | 100 | 85 | 106 | 52 | 3.7% | 3.2% | 4.2% | 2.0% |
| Biographical Item | 7 | 12 | 8 | 13 | 0.3% | 0.4% | 0.3% | 0.5% |
| Software Review | 24 | 1 | 0 | 0 | 0.9% | 0.0% | 0 | 0 |
| Total | 2,726 | 2,682 | 2,516 | 2,602 | 100.0% | 100.0% | 100.0% | 100.0% |
PNAS. Numbers of publications by document type.
| Year | Number of publications | Percentage | ||||||
|---|---|---|---|---|---|---|---|---|
| Document type | 1999 | 2004 | 2009 | 2014 | 1999 | 2004 | 2009 | 2014 |
| Article | 2,603 | 3,077 | 3,759 | 3,586 | 92.1% | 92.2% | 89.1% | 85.4% |
| Editorial Material | 151 | 129 | 181 | 290 | 5.3% | 3.9% | 4.3% | 6.9% |
| Letter | 0 | 0 | 122 | 174 | 0 | 0 | 2.9% | 4.1% |
| Correction | 66 | 88 | 142 | 111 | 2.3% | 2.6% | 3.4% | 2.6% |
| News Item | 0 | 0 | 0 | 21 | 0 | 0 | 0 | 0.5% |
| Biographical Item | 1 | 35 | 10 | 15 | 0.0% | 1.0% | 0.2% | 0.4% |
| Review | 6 | 7 | 6 | 2 | 0.2% | 0.2% | 0.1% | 0.0% |
| Total | 2,827 | 3,336 | 4,220 | 4,199 | 100.0% | 100.0% | 100.0% | 100.0% |
Nature: Similarity values for country document type profiles for pairs of years.
| Countries | 1999 | 2004 | 2009 | Countries | 1999 | 2004 | 2009 |
|---|---|---|---|---|---|---|---|
| Australia | 0.695 | 0.689 | 0.973 | Netherlands | 0.991 | 0.739 | 0.980 |
| Brazil | 0.944 | 0.989 | 0.996 | P. R. China | 0.667 | 0.508 | 0.887 |
| Canada | 0.920 | 0.950 | 0.919 | Russia | 0.741 | 0.943 | 0.844 |
| France | 0.987 | 0.946 | 0.912 | South Africa | 0.233 | 0.998 | 0.463 |
| Germany | 0.968 | 0.965 | 0.986 | Switzerland | 0.976 | 0.926 | 0.897 |
| India | 0.624 | 0.984 | 0.957 | UK | 0.992 | 0.995 | 0.989 |
| Japan | 0.936 | 0.989 | 0.844 | USA | 1.000 | 0.999 | 0.979 |
Science: Similarity values for country document type profiles for pairs of years.
| Countries | 1999 | 2004 | 2009 | Countries | 1999 | 2004 | 2009 |
|---|---|---|---|---|---|---|---|
| Australia | 0.647 | 0.961 | 0.983 | Netherlands | 0.897 | 0.888 | 0.953 |
| Brazil | 0.964 | 0.950 | 0.815 | P. R. China | 0.923 | 0.933 | 0.810 |
| Canada | 0.821 | 0.939 | 0.903 | Russia | 0.496 | 0.945 | 0.603 |
| France | 0.937 | 0.970 | 0.961 | South Africa | 0.952 | 0.955 | 0.989 |
| Germany | 0.926 | 0.970 | 0.991 | Switzerland | 0.911 | 0.950 | 0.906 |
| India | 0.642 | 0.545 | 0.957 | UK | 0.985 | 0.992 | 0.975 |
| Japan | 0.994 | 0.907 | 0.911 | USA | 0.995 | 0.998 | 0.995 |
Number of publication fractions of the 10 most productive countries and four BRICS countries in year 2014.
| Countries | Number of publication fractions | Rank | ||||
|---|---|---|---|---|---|---|
| USA | 807.4 | 872.1 | 2,261.8 | 1 | 1 | 1 |
| UK | 208.8 | 159.8 | 259.1 | 2 | 2 | 2 |
| Germany | 93.2 | 87.2 | 195.5 | 3 | 3 | 3 |
| P. R. China | 61.1 | 46.9 | 169.9 | 6 | 6 | 4 |
| France | 65.5 | 49.8 | 129.3 | 5 | 4 | 6 |
| Canada | 49.7 | 48.3 | 116.7 | 7 | 5 | 7 |
| Japan | 31.4 | 42.6 | 139.4 | 10 | 7 | 5 |
| Australia | 68.8 | 41.0 | 73.8 | 4 | 8 | 8 |
| Switzerland | 48.6 | 38.3 | 64.2 | 8 | 9 | 10 |
| Netherlands | 34.7 | 36.1 | 69.9 | 9 | 10 | 9 |
| Brazil | 8.8 | 9.4 | 13.1 | 19 | 18 | 24 |
| India | 6.0 | 6.3 | 12.2 | 25 | 21 | 25 |
| Russia | 7.3 | 3.4 | 7.2 | 21 | 28 | 30 |
| South Africa | 4.3 | 5.5 | 5.2 | 30 | 23 | 32 |
PNAS: Similarity values for country document type profiles for pairs of years.
| Countries | 1999 | 2004 | 2009 | Countries | 1999 | 2004 | 2009 |
|---|---|---|---|---|---|---|---|
| Australia | 0.601 | 0.711 | 0.973 | Netherlands | 0.773 | 0.371 | 0.968 |
| Brazil | 1.000 | 0.941 | 0.540 | P. R. China | 0.133 | 0.993 | 0.660 |
| Canada | 0.993 | 0.739 | 0.969 | Russia | 1.000 | 1.000 | 1.000 |
| France | 0.968 | 0.639 | 0.996 | South Africa | 1.000 | 0.169 | 0.042 |
| Germany | 0.992 | 0.660 | 0.979 | Switzerland | 0.998 | 0.736 | 0.721 |
| India | 1.000 | 0.138 | 0.114 | UK | 0.948 | 0.730 | 0.988 |
| Japan | 0.987 | 0.896 | 0.915 | USA | 1.000 | 0.879 | 1.000 |
Nature. Numbers of publications by document type.
| Year | Number of publications | Percentage | ||||||
|---|---|---|---|---|---|---|---|---|
| Document type | 1999 | 2004 | 2009 | 2014 | 1999 | 2004 | 2009 | 2014 |
| Editorial Material | 574 | 660 | 780 | 833 | 19.1% | 25.4% | 30.7% | 32.5% |
| Article | 998 | 916 | 800 | 828 | 33.3% | 35.2% | 31.4% | 32.3% |
| News Item | 709 | 584 | 381 | 371 | 23.6% | 22.4% | 15.0% | 14.5% |
| Letter | 404 | 183 | 250 | 272 | 13.5% | 7.0% | 9.8% | 10.6% |
| Correction | 41 | 45 | 78 | 108 | 1.4% | 1.7% | 3.1% | 4.2% |
| Book Review | 232 | 180 | 169 | 102 | 7.7% | 6.9% | 6.6% | 4.0% |
| Review | 18 | 21 | 66 | 34 | 0.6% | 0.8% | 2.6% | 1.3% |
| Biographical Item | 21 | 14 | 19 | 13 | 0.7% | 0.5% | 0.7% | 0.5% |
| Reprint | 3 | 0 | 1 | 0 | 0.1% | 0 | 0.0% | 0 |
| Total | 3,000 | 2,603 | 2,544 | 2,561 | 100.0% | 100.0% | 100.0% | 100.0% |
Number of publications of the journals.
| Year | 1999 | 2004 | 2009 | 2014 | |||||
|---|---|---|---|---|---|---|---|---|---|
| Journal | All | With add. | All | With add. | All | With add. | All | With add. | |
| 3,000 | 2,014 | 2,603 | 1,766 | 2,544 | 1,666 | 2,561 | 1,708 | ||
| 2,726 | 1,729 | 2,682 | 1,711 | 2,516 | 1,724 | 2,602 | 1,631 | ||
| 2,827 | 2,759 | 3,336 | 3,208 | 4,220 | 4,078 | 4,199 | 3,998 | ||