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 13.52
2 Research Institute for Astronomy and Astrophysics of Maragha (RIAAM), Iran 1.08 6.58
3 Shiraz University, Iran 3.33 5.92
4 Shahid Beheshti University (SBU), Iran 5.49 5.75
5 Sharif University of Technology (SUT), Iran 3.26 5.13
6 University of Tehran (UT), Iran 4.12 4.72
7 Azarbaijan Shahid Madani University, Iran 0.67 4.2
8 Isfahan University of Technology (IUT), Iran 1.93 3.69
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 Islamic Azad University (IAU), Iran 1.88 1.86
13 University of Mazandaran (UMZ), Iran 1.65
14 Arak University, Iran 1.63
15 Lorestan University, Iran 0.15 1.33
15 Damghan University, Iran 2.92 1.33
16 Semnan University, Iran 0.08 1.07
17 Tarbiat Modares University (TMU), Iran 1.06
18 Iran University of Science and Technology (IUST), Iran 0 1
18 University of Ayatollah Ozma Borujerdi, Iran 0.5 1
18 Sirjan University of Technology, Iran 1 1
18 Ferdowsi University of Mashhad (FUM), Iran 2.2 1
19 University of Zanjan, Iran 0.4 0.92
20 Institute for Advanced Studies in Basic Sciences (IASBS), Iran 1.08 0.89
21 University of Sistan and Baluchestan (USB), Iran 1.7 0.7
22 Shahid Chamran University of Ahvaz, Iran 0.12 0.67
22 University of Kashan, Iran 0.33 0.67
23 University of Tabriz, Iran 3.5 0.5
23 Imam Hossein University (IHU), Iran 0.5
23 Science Beam Institute, Iran 0.5
24 Hakim Sabzevari University, Iran 0.46
25 Shahrekord University, Iran 0.33
25 Mazandaran University of Science and Technology (MUST), Iran 0.33
26 Shahid Rajaee Teacher Training University (SRTTU), Iran 0.38 0.28
27 University of Bonab, Iran 0.25
27 Payame Noor University (PNU), Iran 0.25
28 University of Hormozgan, Iran 0.2
29 University of Guilan (GU), Iran 0.2 0.17
29 University of Isfahan (UI), Iran 0.25 0.17
29 Imam Khomeini International University (IKIU), Iran 0.17
30 Geological Survey and Mineral Exploration of Iran (GSI), Iran 0.13
30 Golestan University, Iran 0.13
31 Amirkabir University of Technology (AUT), Iran 0.12 0.1
31 Young Researchers and Elite Club, Iran 0.17 0.1
32 Pasargad Institute for Advanced Innovative Solutions (PIAIS), Iran 0.02
33 Yazd University, Iran 1.76 0.01

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 2019 levels to calculate the percentage change. For more information on the adjustment, please see the Adjusted metric explainer.