2021 tables: Institutions - physical sciences

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

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# Institution Share 2019 Share 2020 Count 2020 Change in Adjusted Share* 2019–2020
1 Bilkent University, Turkey 11.26 4.64 14 -61.7%
2 Istanbul Technical University (ITU), Turkey 6.24 3.14 57 -53.3%
3 Boğaziçi University (BU), Turkey 4.06 2.90 104 -33.6%
4 Middle East Technical University (METU), Turkey 2.06 2.59 65 16.5%
5 Özyeğin University, Turkey 0.51 2.09 36 283.0%
6 Koç University (KU), Turkey 2.10 1.84 14 -18.5%
7 Marmara University, Turkey 0.07 1.74 36 2341.3%
8 Bolu Abant İzzet Baysal University (BAIBU), Turkey 0.52 1.42 3 155.6%
9 Uludag University, Turkey 0.35 1.34 5 257.8%
10 Karamanoğlu Mehmetbey University (KMU), Turkey 0.05 1.13 34 2059.5%
11 Başkent University, Turkey – 1.11 2 N/A
12 Gebze Technical University (GYTE), Turkey 0.18 1.04 4 432.4%
13 Pamukkale University (PAU), Turkey – 1.00 1 N/A
14 Kocaeli University, Turkey 1.42 0.92 2 -39.9%
15 Sabanci University (SU), Turkey 1.42 0.87 4 -42.8%
16 Doğuş University (DOU), Turkey 0.28 0.86 3 188.1%
17 Akdeniz University, Turkey 0.50 0.83 2 54.9%
18 Istanbul University, Turkey 0.30 0.82 60 155.9%
19 Erciyes University, Turkey 0.16 0.78 1 359.3%
20 University of Turkish Aeronautical Association (UTAA), Turkey 0.33 0.58 2 62.7%
21 Cumhuriyet University, Turkey – 0.56 8 N/A
22 Çukurova University, Turkey 0.77 0.47 46 -42.6%
23 Giresun University, Turkey 0.34 0.40 21 11.2%
24 Hacettepe University, Turkey 0.07 0.38 35 415.9%
25 Mimar Sinan Fine Arts University, Turkey 0.01 0.34 33 4125.5%
25 Izmir Institute of Technology (IZTECH), Turkey 0.57 0.34 33 -44.2%
26 Suleyman Demirel University, Turkey 0.33 0.33 1 -7.1%
27 Ankara University, Turkey 0.24 0.31 50 20.0%
28 Istanbul Aydin University (IAU), Turkey 0.05 0.30 75 417.8%
29 Uşak University, Turkey 0.50 0.25 1 -53.5%
30 Soyak Göztepe Sitesi, Turkey – 0.20 1 N/A
31 Ataturk University, Turkey 0.50 0.18 3 -66.1%
32 Istanbul Bilgi University, Turkey 0.22 0.17 88 -28.2%
33 Hasan Kalyoncu University (HKU), Turkey – 0.17 1 N/A
34 Erzurum Technical University (ETU), Turkey – 0.15 2 N/A
35 Eskisehir Osmangazi University, Turkey – 0.15 2 N/A
36 Muğla Sıtkı Koçman University (MSKU), Turkey – 0.13 1 N/A
36 Balıkesir University (BAUN), Turkey – 0.13 1 N/A
37 Turkish-German University (TAU), Turkey – 0.08 1 N/A
37 Kadir Has University (KHU), Turkey – 0.08 1 N/A
38 Recep Tayyip Erdogan University, Turkey – 0.07 1 N/A
39 Aydın Adnan Menderes University (ADU), Turkey – 0.06 1 N/A
40 Adıyaman University, Turkey 0.18 0.05 33 -75.2%
41 University of Gaziantep (GAUN), Turkey 0.05 0.04 42 -8.4%
42 KTO Karatay University, Turkey 0.03 0.04 22 21.4%
43 Abdullah Gül University, Turkey 0.38 0.04 1 -89.8%
44 Bahcesehir University (BAU), Turkey 0.22 0.04 43 -82.6%
45 Ege University, Turkey 0.16 0.04 1 -78.3%
46 Near East University (NEU), Turkey 0.05 0.03 24 -40.0%
47 Atilim University, Turkey – 0.03 1 N/A
48 TOBB University of Economics and Technology, Turkey 0.03 0.02 43 -14.6%
49 Niğde Ömer Halisdemir University, Turkey 0.20 0.01 1 -93.4%
49 Istanbul Sabahattin Zaim University (IZU), Turkey – 0.01 1 N/A
50 Beykent University, Turkey 0.01 0.01 33 28.7%
51 Dokuz Eylül University, Turkey 0.01 0.01 1 -17.7%
52 Kafkas University, Turkey 0.01 0.01 32 -13.3%
53 Piri Reis University, Turkey 0.01 0.01 32 -13.4%
54 Bingöl University, Turkey 0.01 0.01 32 -16.0%
54 Sinop University, Turkey 0.01 0.01 32 -16.0%
54 Mersin University, Turkey 0.01 0.01 32 -16.0%
55 Sirnak University, Turkey 0.00 0.01 31 199.2%
55 Erzincan Binali Yıldırım University, Turkey 0.00 0.01 31 214.3%
56 Gaziosmanpaşa University, Turkey 0.01 0.01 24 -35.3%
57 Burdur Mehmet Akif Ersoy University, Turkey 0.80 0.00 19 -99.5%
58 Yozgat Bozok University, Turkey – 0.00 8 N/A
59 National Defense University (NDU), Turkey – 0.00 7 N/A
60 Istanbul Arel University, Turkey 0.00 0.00 1 -11.4%
61 Necmettin Erbakan University, Turkey 0.00 0.00 4 260.3%

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 through 2022, in 2023 64 health-science journals were added to the Index. The 146 journals in the Nature Index were 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 nature.com/nature-index/.
  5. Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

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 2022 levels to calculate the percentage change. For more information on the adjustment, please see the Adjusted metric explainer.


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