2021 tables: Institutions - Nature & Science - academic

The 2021 tables are based on Nature Index data from 1 January 2020 to 31 December 2020.

Table criteria

# Institution Share 2019 Share 2020 Count 2020 Change in Adjusted Share 2019-2020*
1 University of Padova (UNIPD), Italy 1.01 1.55 10 39.8%
2 Sapienza University of Rome, Italy 0.93 0.85 10 -17.4%
3 University of Florence (UNIFI), Italy 0.28 0.79 5 155.3%
4 University of Milan (UNIMI), Italy 0.26 0.58 11 102.5%
5 University of Bologna (UNIBO), Italy 0.82 0.36 8 -60.5%
6 University of Trento (UNITN), Italy 0.17 0.30 7 64.0%
7 University of Genova, Italy 0.00 0.30 3 6,243.8%
8 University of Milano-Bicocca (UNIMIB), Italy 0.06 0.28 7 347.7%
9 University of Pavia (UNIPV), Italy 0.05 0.25 6 333.4%
10 Vita-Salute San Raffaele University (UniSR), Italy 0.21 0.19 2 -18.7%
11 Polytechnic University of Milan, Italy 0.40 0.18 4 -58.5%
12 Marche Polytechnic University (UNIVPM), Italy 0.07 0.17 1 127.3%
13 University of Turin (UNITO), Italy 0.42 0.16 5 -64.7%
14 University of Pisa (UNIPI), Italy 0.25 0.14 5 -47.8%
15 University of Naples Federico II (UNINA), Italy 0.47 0.14 5 -72.8%
16 Polytechnic University of Turin, Italy 0.05 0.11 3 95.3%
17 University of Bari Aldo Moro (UniBA), Italy 0.31 0.11 6 -66.8%
18 University of Ferrara (UNIFE), Italy 0.01 0.11 3 938.3%
19 University of Trieste (UNITS), Italy 0.23 0.05 4 -81.0%
20 Campus Bio-Medico University, Italy 0.04 1 N/A
21 University of Campania Luigi Vanvitelli, Italy 0.00 0.04 1 4,661.3%
22 Ca' Foscari University of Venice (UNIVE), Italy 0.00 0.04 1 4,576.2%
23 Gran Sasso Science Institute (GSSI), Italy 0.06 0.04 2 -48.0%
24 Scuola Agraria del Parco di Monza, Italy 0.03 1 N/A
25 Parthenope University of Naples, Italy 0.00 0.03 2 4,284.0%
26 IMT School for Advanced Studies Lucca, Italy 0.03 1 N/A
27 University of Salento, Italy 0.00 0.03 1 3,991.7%
28 University of Brescia (UNIBS), Italy 0.00 0.02 5 1,128.7%
29 University of Perugia, Italy 0.04 0.02 4 -60.0%
30 Polytechnic University of Bari, Italy 0.00 0.02 3 561.9%
31 Scuola Internazionale Superiore di Studi Avanzati (SISSA), Italy 0.00 0.01 2 930.9%
32 University of Verona (UNIVR), Italy 0.01 3 N/A
33 University of Rome Tor Vergata, Italy 0.04 0.01 2 -66.3%
34 University of Siena (UNISI), Italy 0.02 0.01 1 -39.2%
35 University of Foggia (UNIFG), Italy 0.12 0.01 2 -91.0%
36 University of Catania, Italy 0.06 0.01 3 -84.9%
37 University of Chieti (Ud'A), Italy 0.01 0.01 1 -3.0%
38 University of Roma Tre, Italy 0.10 0.01 1 -93.2%
39 University of Urbino, Italy 0.01 0.01 1 -47.2%
40 University of L'Aquila (UNIVAQ), Italy 0.01 0.01 1 -64.4%
41 Scuola Normale Superiore (SNS), Italy 0.03 0.01 1 -86.4%
42 University of Insubria, Italy 0.00 0.01 2 164.2%
43 University of Parma (UNIPR), Italy 0.00 0.00 1 535.6%
44 University of Salerno (UNISA), Italy 0.05 0.00 1 -91.8%
45 University of Cagliari (UNICA), Italy 0.00 0.00 1 262.3%
46 University of Palermo (UNIPA), Italy 0.03 0.00 1 -93.8%
47 University of Eastern Piedmont "Amedeo Avogadro" (UNIPMN), Italy 0.00 1 N/A
48 University of Messina (UNIME), Italy 0.03 0.00 1 -97.4%

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.