2018 tables: Institutions - physical sciences - academic

The 2018 tables are based on Nature Index data from 1 January 2017 to 31 December 2017.

Table criteria

# Institution Share 2016 Share 2017 Count 2017 Change in Adjusted Share 2016-2017*
1 Autonomous University of Madrid (UAM), Spain 45.89 31.48 257 -32.2%
2 University of Barcelona (UB), Spain 28.47 28.49 160 -1.1%
3 University of the Basque Country (UPV/EHU), Spain 23.21 24.49 111 4.3%
4 University of Valencia (UV), Spain 20.68 20.65 215 -1.3%
5 Complutense University of Madrid (UCM), Spain 14.42 18.94 64 29.8%
6 University of Granada (UGR), Spain 7.43 9.92 97 31.9%
7 Autonomous University of Barcelona (UAB), Spain 9.81 9.91 106 -0.2%
8 Polytechnic University of Catalonia (UPC), Spain 4.81 9.32 63 91.4%
9 University of Oviedo (UniOvi), Spain 6.50 8.46 91 28.6%
10 University of La Laguna (ULL), Spain 10.55 7.05 97 -33.9%
11 University of Santiago de Compostela (USC), Spain 8.54 6.69 90 -22.6%
12 University of Zaragoza (Unizar), Spain 9.34 5.14 32 -45.7%
13 University of Salamanca (USAL), Spain 5.35 3.51 10 -35.1%
14 Charles III University of Madrid (UC3M), Spain 0.87 3.18 12 260.9%
15 Rovira i Virgili University (URV), Spain 5.16 3.03 7 -41.9%
16 University of Seville (US), Spain 4.56 2.88 22 -37.7%
17 University of Murcia (UMU), Spain 1.66 2.74 10 63.0%
18 Polytechnic University of Valencia (UPV), Spain 1.65 2.73 18 62.8%
19 Technical University of Madrid (UPM), Spain 5.99 2.34 12 -61.3%
20 University of Cantabria (UC), Spain 2.73 1.90 84 -31.3%
21 University of Vigo (UVIGO), Spain 1.40 1.78 4 26.0%
22 Jaume I University (UJI), Spain 3.71 1.56 5 -58.5%
23 University of Extremadura (UEx), Spain 0.13 1.31 5 939.3%
24 University of Alcalá (UAH), Spain 0.66 1.28 6 91.2%
25 University of Almeria (UAL), Spain 0.18 1.09 6 490.2%
26 University of Navarra (UNAV), Spain 0.02 1.00 2 6,224.2%
26 Mondragon University, Spain 1.00 1 N/A
27 University of Valladolid (UVa), Spain 0.35 0.98 3 180.9%
28 University of Alicante (UA), Spain 0.48 0.92 6 90.3%
29 University of Málaga (UMA), Spain 0.19 0.69 7 258.9%
30 University of Cádiz (UCA), Spain 0.81 0.69 2 -16.5%
31 University of Castilla-La Mancha (UCLM), Spain 1.23 0.65 7 -47.5%
32 University of the Balearic Islands (UIB), Spain 1.61 0.60 15 -63.0%
33 Technical University of Cartagena (UPCT), Spain 0.17 0.58 2 245.9%
34 Miguel Hernández University of Elche (UMH), Spain 0.50 1 N/A
35 University of Las Palmas de Gran Canaria (ULPGC), Spain 0.44 5 N/A
36 University of Cordoba (UCO), Spain 0.42 2 N/A
37 Public University of Navarre (UPNA), Spain 1.90 0.39 1 -79.8%
38 University of Huelva (UHU), Spain 1.01 0.37 4 -63.6%
39 University of Girona (UdG), Spain 0.06 0.37 2 496.6%
40 University of La Rioja (UR), Spain 0.29 1 N/A
41 CEU Cardinal Herrera University, Spain 0.25 1 N/A
42 King Juan Carlos University (URJC), Spain 1.28 0.25 3 -81.0%
43 Pompeu Fabra University (UPF), Spain 0.90 0.16 2 -82.8%
44 San Pablo CEU University (USPCEU), Spain 0.13 1 N/A
45 Open University of Catalonia (UOC), Spain 0.10 1 N/A
46 University of Jaén (UJU), Spain 0.08 1 N/A
47 Comillas Pontifical University (UPCO), Spain 0.41 0.07 2 -83.5%
48 Ramon Llull University (URL), Spain 0.02 0.02 21 -7.6%
49 National University of Distance Education (UNED), Spain 0.33 0.00 1 -99.3%

Footnote

Each year, the Nature Index publishes tables based on counts of high-quality research outputs in the previous calendar year. Users please note:

  1. The data behind the tables are based on a relatively small proportion of total research papers, they cover the natural sciences only and outputs are non-normalized (that is, they don’t reflect the size of the country or institution, or its overall research output).
  2. The Nature Index is one indicator of institutional research performance. The metrics of Count and Share used to order Nature Index listings are based on an institution’s or country’s publication output in 82 natural-science journals, selected on reputation by an independent panel of leading scientists in their fields.
  3. Nature Index recognizes that many other factors must be taken into account when considering research quality and institutional performance; Nature Index metrics alone should not be used to assess institutions or individuals.
  4. Nature Index data and methods are transparent and available under a creative commons licence at natureindex.com.

The Nature Index database undergoes regular updating, corrections, adjustment of institutional hierarchies, and removal of retracted papers and thus the live website can differ from the frozen annual tables.

*The change in adjusted Share accounts for the small annual variation in the total number of articles in Nature Index journals. Share values have been adjusted to 2020 levels to calculate the percentage change. For more information on the adjustment, please see the Adjusted metric explainer.