Bulgaria
Research
Date range: 1 April 2021 - 31 March 2022
Subject/journal group: All
The table to the right includes counts of all research outputs for Bulgaria published between 1 April 2021 - 31 March 2022 which are tracked by the Nature Index.
Hover over the donut graph to view the Share for each subject. Below, the same research outputs are grouped by subject. Click on the subject to drill-down into a list of articles organized by journal, and then by title.
Note: Articles may be assigned to more than one subject area.
Count | Share |
---|---|
156 | 13.53 |
Outputs by subject (Share)
Subject | Count | Share |
---|---|---|
Physical Sciences | 121 | 9.56 |
Earth & Environmental Sciences | 4 | 0.42 |
Life Sciences | 21 | 1.12 |
Chemistry | 11 | 2.65 |
Share output for the past 5 years
2016 | 2017 | 2018 | 2019 | 2020 |
---|---|---|---|---|
9.67 | 7.08 | 13.62 | 15.24 | 9.74 |
Collaboration
View the connected world of international research collaboration. Visualize collaborations by subject or region.
Date range: 1 April 2021 - 31 March 2022
Collaboration by percentage of Share
Hover over the graph to view collaboration by percentage of Share.
Country | Share (%) |
---|---|
USA | 25.32 |
Germany | 18.87 |
Italy | 9.92 |
France | 8.89 |
UK | 7.75 |
Russia | 7.62 |
Switzerland | 6.31 |
China | 5.62 |
Belgium | 5.05 |
Spain | 4.65 |
Top 10 collaborators with Bulgaria by Share
-
Bulgaria and United States of America (USA)
(31.08)
-
Bulgaria and Germany
(23.16)
-
Bulgaria and Italy
(12.18)
-
Bulgaria and France
(10.91)
-
Bulgaria and United Kingdom (UK)
(9.52)
-
Bulgaria and Russia
(9.35)
-
Bulgaria and Switzerland
(7.75)
-
Bulgaria and China
(6.90)
-
Bulgaria and Belgium
(6.19)
-
Bulgaria and Spain
(5.71)
Collaboration is determined by the combined fractional count (Share) of Bulgaria and the collaborating country.
Top 10 institutions from Bulgaria by Share
Institution | Count | Share | |
---|---|---|---|
1. | Bulgarian Academy of Sciences (BAS) | 117 | 8.85 |
2. | Sofia University St. Kliment Ohridski | 95 | 5.74 |
3. | Center of Plant Systems Biology and Biotechnology (CPSBB) | 2 | 0.22 |
4. | Institute of Fishery Resources | 1 | 0.19 |
5. | New Bulgarian University (NBU) | 2 | 0.13 |
6. | Medical University of Varna | 1 | 0.13 |
7. | Medical University of Plovdiv | 4 | 0.10 |
8. | Maritsa Vegetable Crops Research Institute (MVCRI) | 3 | 0.08 |
9. | Medical University Pleven | 1 | 0.06 |
10. | Sofiyska Voda AD | 1 | 0.06 |

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