2019 tables: Institutions - physical sciences

Table criteria

The 2019 tables are based on Nature Index data from 1 January 2018 to 31 December 2018.

2018 Institution Share 2017 Share 2018
1 Institute for Research in Fundamental Sciences (IPM), Iran 10.04 12.35
2 Research Institute for Astronomy and Astrophysics of Maragha (RIAAM), Iran 1.08 6.58
3 Shiraz University, Iran 3.33 5.92
4 University of Tehran (UT), Iran 4.12 4.72
5 Azarbaijan Shahid Madani University, Iran 0.67 4.2
6 Sharif University of Technology (SUT), Iran 3.26 3.79
7 Shahid Beheshti University (SBU), Iran 5.49 3.75
8 Isfahan University of Technology (IUT), Iran 1.93 3.18
9 Bu-Ali Sina University, Iran 1 2.83
10 Shahrood University of Technology, Iran 2.83 2.58
11 University of Kurdistan, Iran 2.33
12 University of Mazandaran (UMZ), Iran 1.65
13 Arak University, Iran 1.63
14 Islamic Azad University (IAU), Iran 1.88 1.36
15 Lorestan University, Iran 0.15 1.33
16 Damghan University, Iran 2.92 1.08
17 Semnan University, Iran 0.08 1.07
18 Tarbiat Modares University (TMU), Iran 1.06
19 Iran University of Science and Technology (IUST), Iran 0 1
19 Ferdowsi University of Mashhad (FUM), Iran 2.2 1
20 University of Zanjan, Iran 0.4 0.92
21 Institute for Advanced Studies in Basic Sciences (IASBS), Iran 1.08 0.89
22 University of Sistan and Baluchestan (USB), Iran 1.7 0.7
23 Shahid Chamran University of Ahvaz, Iran 0.12 0.67
23 University of Kashan, Iran 0.33 0.67
24 University of Tabriz, Iran 3.5 0.5
24 Imam Hossein University (IHU), Iran 0.5
24 Science Beam Institute, Iran 0.5
25 Hakim Sabzevari University, Iran 0.46
26 Shahrekord University, Iran 0.33
26 Mazandaran University of Science and Technology (MUST), Iran 0.33
27 Shahid Rajaee Teacher Training University (SRTTU), Iran 0.38 0.28
28 Payame Noor University (PNU), Iran 0.25
28 University of Bonab, Iran 0.25
29 University of Hormozgan, Iran 0.2
30 University of Guilan (GU), Iran 0.2 0.17
30 University of Isfahan (UI), Iran 0.25 0.17
30 Imam Khomeini International University (IKIU), Iran 0.17
31 Geological Survey and Mineral Exploration of Iran (GSI), Iran 0.13
31 Golestan University, Iran 0.13
32 Amirkabir University of Technology (AUT), Iran 0.12 0.1
32 Young Researchers and Elite Club, Iran 0.17 0.1
33 Pasargad Institute for Advanced Innovative Solutions (PIAIS), Iran 0.02
34 Yazd University, Iran 1.76 0.01

The original version of this table (published 20 June 2019) used incorrect shares, percentage changes and article counts to derive the rankings, which meant that some institutions were ranked incorrectly. The data and rankings were corrected on 12 August 2019.

Each year, the Nature Index publishes tables based on counts of high-quality research outputs in the previous calendar year. It is important for users to understand that the data behind the tables are based on a relatively small proportion of total research papers, that they cover the natural sciences only and that outputs are non-normalized (that is, they don’t reflect the size of the country or institution, or its overall research output). We encourage users to combine the free-to-access Nature Index data with information from other sources.

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 FC accounts for the small annual variation in the total number of articles in Nature Index journals. FC values have been adjusted to 2018 levels to calculate the percentage change. For more information on the adjustment, please see the Adjusted metric explainer.