AD Scientific Index 2021

World Top 100 Scientists 2021

The ranking of “Top 100” scientists is based on total h-index scores. Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, North America, Oceania, Arab League, EECA, BRICS, Latin America, and COMESA based on total h-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, and Social Sciences. According to Total H. BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (201.316 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects. Therefore, you may wish to specify your subject and branch and contribute in order to standardize your performance. Determining the subjects/departments, to which scientific fields would belong, may seem easy in some branches and in a variety of countries. However, it may create considerable confusion in some other countries, regions, and schools. We would like to emphasize that the following fields including Engineering, Natural and Environmental Sciences, Biology, Biochemistry, Material Science, Biotechnology, Chemistry, and Social Sciences may exist in quite variable spectrums in different countries. Therefore, we would like to stress that the standardization of subjects and branches has not been easy. To perform standardizations, we accepted the official names of the institutions and academic branches as accurate in the way that they were specified on the university website. We have developed this strategy in order to standardize this complex situation at least partially. Furthermore, we started a procedure to add an asterisk as “*” at the end of the names of the authors when a scientific paper of interest included many authors such as CERN, ATLAS, ALICE, CMS, Statistical Data, Guideline, Updates etc. scientific papers. We think that new criteria will be defined to be implemented for such studies. Until further criteria are described, we marked such studies with a “*” sign.
Total 706.411 scientist, 208 country, 13.447 university
# AD Scientific Index - Scientist Rankings - Top 100 Rankings 2021 H INDEX i10 INDEX CITATION
Rank University Country Region World Name
Country University Subject Total Last 5 year Last 5 year / total Total Last 5 year Last 5 year / total Total Last 5 year Last 5 year / total
1 1 1 1 1 Ronald C Kessler *

United States
Harvard University Medical and Health Sciences / Psychiatry
Psychiatric Epidemiology|
312 194 0.622 1158 930 0.803 462909 181179 0.391
2 1 1 1 2 HJ Kim *

South Korea
Kyungpook (Kyungbook) National University Natural Sciences / Physics
high energy physics|astro-particle physics|scintillator|
309 221 0.715 2007 1580 0.787 442698 226395 0.511
3 2 2 2 3 Joann E Manson *

United States
Harvard University Medical and Health Sciences / Endocrinology and Metabolism
Endocrinology|Epidemiology|Cardiovascular Disease|Diabetes|Women's health|
300 165 0.550 1338 1166 0.871 380714 134311 0.353
4 1 3 3 4 Graham Colditz *

United States
Washington University Saint Louis Medical and Health Sciences / Epidemiology and Public Health
Epidemiology|Cancer Prevention|Health Outcomes|
298 144 0.483 1246 966 0.775 364629 89475 0.245
5 1 4 4 5 Robert Langer *

United States
Massachusetts Institute of Technology Engineering & Technology / Bioengineering
drug delivery|tissue engineering|biomaterials|nanotechnology|chemistry|
294 170 0.578 1821 1350 0.741 353549 132097 0.374
6 1 1 2 6 Shizuo Akira

Japan
Osaka University Medical and Health Sciences / Immunology
immunology|
287 157 0.547 1159 962 0.830 404393 127125 0.314
7 3 5 5 7 Frank B Hu *

United States
Harvard University Medical and Health Sciences / Epidemiology and Public Health
282 206 0.730 1315 1218 0.926 392645 211854 0.540
8 1 1 1 8 Michael Graetzel

Switzerland
École Polytechnique Fédérale de Lausanne Engineering & Technology / Energy Engineering
Solar energy conversion|
280 184 0.657 1421 1078 0.759 410612 189911 0.463
9 1 6 6 9 Huanzhao Liu *

United States
Indiana University Bloomington Natural Sciences / Physics
Experimental Particle Physics|Collider Physics|
277 208 0.751 2104 1753 0.833 400885 245917 0.613
10 1 1 7 10 Gordon Guyatt *

Canada
McMaster University Medical and Health Sciences / Epidemiology and Public Health
Evidence-based medicine|
271 165 0.609 1382 1031 0.746 333233 147978 0.444
11 2 2 8 11 Salim Yusuf *

Canada
McMaster University Medical and Health Sciences / Cardiology
Cardiology|
268 174 0.649 1239 925 0.747 417412 165407 0.396
12 1 7 9 12 Michael Karin

United States
University of California San Diego Medical and Health Sciences / Pharmacology
Molecular Biology|Immunology|Cancer Biology|Signal Transduction|
266 133 0.500 654 514 0.786 300941 77633 0.258
13 1 8 10 13 Zhong Lin Wang

United States
Georgia Institute of Technology Engineering & Technology / Nanoscience and Nanotechnology
nanogenerator|self-powered sensors/systems|blue energy|piezotronics|piezo-phototronics|
263 195 0.741 1778 1559 0.877 294600 163325 0.554
14 1 9 11 14 Richard A Flavell

United States
Yale University Medical and Health Sciences / Immunology
Immunology|
257 134 0.521 1163 822 0.707 247650 72294 0.292
15 1 1 2 15 Guido Kroemer *

France
Université de Paris (IPGP Descartes Diderot) Natural Sciences / Biological Science
aging|cancer|immunology|medicine|metabolism|
254 167 0.657 1163 970 0.834 290582 135044 0.465
16 1 1 3 16 Karl Friston

United Kingdom
UCL University College London Medical and Health Sciences / Neuroscience
Neuroscience|
252 157 0.623 1059 914 0.863 285936 113760 0.398
17 2 2 3 17 Donghee Kim *

South Korea
Kyungpook (Kyungbook) National University Natural Sciences / Physics
Particle Physics|
252 174 0.690 1569 1082 0.690 276373 131468 0.476
18 1 3 4 18 SB Kim *

South Korea
Seoul National University Natural Sciences / Physics
physics|
251 150 0.598 1823 1068 0.586 307625 117068 0.381
19 1 10 12 19 James Brau *

United States
University of Oregon Natural Sciences / Physics
particle physics|
249 196 0.787 1669 1293 0.775 312632 199079 0.637
20 1 1 4 20 Alberto Ruiz Jimeno *

Spain
Universidad de Cantabria Natural Sciences / Physics
Física Experimental de Partículas Elementales
249 161 0.647 1336 1060 0.793 229732 121811 0.530
21 1 2 5 21 Douglas G Altman *

United Kingdom
University of Oxford Natural Sciences / Statistics
biostatistics|statistics|medical statistics|
247 190 0.769 987 774 0.784 697318 420431 0.603
22 1 11 13 22 Robert J Lefkowitz

United States
Duke University Medical and Health Sciences / Biochemistry
GPCRs|Structural biology|Biochemistry|Arrestins|Drug discovery|
244 84 0.344 808 419 0.519 211429 34205 0.162
23 3 4 5 23 Sehwook Lee *

South Korea
Kyungpook (Kyungbook) National University Natural Sciences / Physics
High Energy Physics|
239 170 0.711 2032 1314 0.647 277640 126986 0.457
24 1 1 6 24 Hanshuang Chen 陈含爽 *

China
University of Science & Technology of China Natural Sciences / Physics
Complex Networks|Nonequilibrium Statistical Physics|Phase Transition|
239 186 0.778 1432 1121 0.783 232980 139548 0.599
25 1 3 6 25 Peter J Barnes *

United Kingdom
Imperial College London Medical and Health Sciences / Chest Diseases
Respiratory medicine|
238 98 0.412 1573 754 0.479 244576 59501 0.243
26 2 5 7 26 UK Yang *

South Korea
Seoul National University Natural Sciences / Physics
Particle Physics|
237 191 0.806 1833 1435 0.783 288284 177407 0.615
27 1 2 8 27 Haijun Yang *

China
Shanghai Jiao Tong University Natural Sciences / Physics
High Energy Physics|Particle Physics|Nuclear Instruments and Methods|
236 195 0.826 1667 1456 0.873 275059 183111 0.666
28 4 12 14 28 Peter Libby *

United States
Harvard University Medical and Health Sciences / Epidemiology and Public Health
medicine|cardiology|atherosclerosis|immunology|
236 124 0.525 774 601 0.776 252130 82528 0.327
29 1 3 9 29 Xiao-Fei Li 李小飞 *

China
University of Electronic Science & Technology of China Engineering & Technology / Electrical & Electronic Engineering
Nanoelectronics|Spintronics|Nanophotonics|
236 198 0.839 1067 1013 0.949 229287 162525 0.709
30 1 13 15 30 Stephane Willocq *

United States
University of Massachusetts Amherst Natural Sciences / Physics
particle physics|
235 182 0.774 1516 1134 0.748 291593 171828 0.589
31 1 14 16 31 Alice Bean *

United States
University of Kansas Natural Sciences / Physics
experimental particle physics|science policy|
234 173 0.739 1660 1142 0.688 272254 139231 0.511
32 1 3 17 32 Justin Albert *

Canada
University of Victoria British Columbia Natural Sciences / Physics
234 180 0.769 1440 1143 0.794 262401 153428 0.585
33 1 1 18 33 Heriberto Castilla *

Mexico
Centro de Investigación y de Estudios Avanzados del IPN CINVESTAV Natural Sciences / Physics
Physics|high energy physics|
233 162 0.695 1649 1214 0.736 249183 125220 0.503
34 2 4 7 34 Jonathan Butterworth *

United Kingdom
UCL University College London Natural Sciences / Physics
Particle Physics|
232 177 0.763 1173 993 0.847 256969 153308 0.597
35 2 15 19 35 Younan Xia

United States
Georgia Institute of Technology Engineering & Technology / Chemical Engineering
Nanomaterials|Biomedicine|Imaging|Energy|Catalysis|
232 146 0.629 772 688 0.891 223397 86853 0.389
36 3 5 8 36 Chris Frith *

United Kingdom
UCL University College London Social Sciences / Psychology
mind|brain|social interaction|
232 124 0.534 640 457 0.714 220047 58491 0.266
37 1 16 20 37 Joseph E. Stiglitz

United States
Columbia University New York Economics & Econometrics / Economics
231 131 0.567 1345 831 0.618 364336 106483 0.292
38 1 17 21 38 Robert W Gardner Jr *

United States
University of Chicago Natural Sciences / Physics
High Energy Physics|Distributed Computing|Advanced Cyberinfrastructure|
230 166 0.722 1829 1158 0.633 303128 162015 0.534
39 2 18 22 39 Eric Torrence *

United States
University of Oregon Natural Sciences / Physics
High Energy Physics|Particle Physics|Physics|
230 170 0.739 1562 1138 0.729 276393 152298 0.551
40 2 19 23 40 Mark Oreglia *

United States
University of Chicago Natural Sciences / Physics
particle physics|
230 176 0.765 1345 957 0.712 259677 147418 0.568
41 1 20 24 41 John Rutherfoord *

United States
University of Arizona Natural Sciences / Physics
Experimental Partical Physics|
229 176 0.769 1424 1059 0.744 262653 147786 0.563
42 5 21 25 42 David J Hunter *

United States
Harvard University Medical and Health Sciences / Epidemiology and Public Health
Cancer Epidemiology|Genetic Epidemiology|Nutritional Epidemiology|Global Health|
228 139 0.610 1145 924 0.807 288456 134582 0.467
43 6 22 26 43 Eric Rimm *

United States
Harvard University Medical and Health Sciences / Epidemiology and Public Health
Professor of Epidemiology|
228 131 0.575 806 723 0.897 261899 107031 0.409
44 1 4 27 44 Andreas Warburton *

Canada
McGill University Natural Sciences / Physics
Physics|Particle Physics|High Energy Physics|Instrumentation|Elementary Particle Physics|
227 158 0.696 1431 936 0.654 299227 153111 0.512
45 2 23 28 45 Carlo Dallapiccola *

United States
University of Massachusetts Amherst Natural Sciences / Physics
experimental high energy physics|experimental particle physics|
227 172 0.758 1396 1017 0.729 249028 140644 0.565
46 1 24 29 46 Joey Huston *

United States
Michigan State University Natural Sciences / Physics
high energy physics|particle physics|
226 160 0.708 1368 940 0.687 347835 162006 0.466
47 1 5 30 47 Pekka Sinervo *

Canada
University of Toronto Natural Sciences / Physics
Elementary Particle Physics|
226 151 0.668 1275 836 0.656 315307 147595 0.468
48 1 2 10 48 Masahiro Kuze *

Japan
Tokyo Institute of Technology Natural Sciences / Physics
High Energy physics|collider physics|neutrino physics|
226 180 0.796 1103 933 0.846 232500 144576 0.622
49 1 6 9 49 Gregory Lip

United Kingdom
University of Liverpool Medical and Health Sciences / Cardiology
Atrial fibrillation|hypertension|thrombosis|heart failure|stroke|
225 157 0.698 1865 1322 0.709 441314 265748 0.602
50 1 25 31 50 A Bodek *

United States
University of Rochester Natural Sciences / Physics
Particle Physics|
225 152 0.676 1518 1011 0.666 253786 120321 0.474
51 1 1 10 51 Enrico Tassi *

Italy
Università della Calabria (Università degli Studi della Calabria) Natural Sciences / Physics
High Energy Physics|Particle Physics|Collider Phenomenology|Perturbative QCD|Top Quark Physics|
225 163 0.724 1120 939 0.838 233078 135201 0.580
52 1 2 11 52 Giuseppe Della Ricca *

Italy
Università degli Studi di Trieste Natural Sciences / Physics
Experimental Physics|Particle Physics|High Energy Physics|
224 169 0.754 1455 1066 0.733 238385 129803 0.545
53 1 1 1 53 Martin Sevior *

Australia
University of Melbourne Natural Sciences / Physics
Physics research|Free Software|Energy|
223 177 0.794 1417 1059 0.747 250079 151430 0.606
54 1 26 32 54 Ronald M Evans

United States
Salk Institute Natural Sciences / Biological Science
gene control transcription hormones nuclear receptors metabolism
223 108 0.484 667 457 0.685 215684 41239 0.191
55 2 27 33 55 Vivek A. Sharma *

United States
University of California San Diego Natural Sciences / Physics
Particle Physics|Experiment|
222 161 0.725 1560 1038 0.665 253629 135377 0.534
56 2 28 34 56 Elliott Cheu *

United States
University of Arizona Natural Sciences / Physics
Particle Physics|
222 179 0.806 1072 841 0.785 249553 148501 0.595
57 1 29 35 57 Kaushik De *

United States
University of Texas Arlington Natural Sciences / Physics
Experimental particle physics|
222 173 0.779 1292 1013 0.784 245882 139932 0.569
58 1 30 36 58 Stephen V Faraone *

United States
State University of New York Upstate Medical University Medical and Health Sciences / Psychiatry
Child psychiatric disorders|
222 116 0.523 1174 872 0.743 188254 63446 0.337
59 1 31 37 59 Andrei Gritsan *

United States
Johns Hopkins University Natural Sciences / Physics
Particle Physics|
221 165 0.747 1538 1188 0.772 283921 152137 0.536
60 1 32 38 60 Krzysztof Sliwa *

United States
Tufts University Natural Sciences / Physics
elementary particles|gemetry/topology of universe|
221 151 0.683 1382 939 0.679 247086 122194 0.495
61 1 1 1 61 María Teresa Dova *

Argentina
Universidad Nacional de La Plata Natural Sciences / Physics
High Energy Physics|Cosmic rays|
221 182 0.824 1201 939 0.782 228932 142752 0.624
62 1 33 39 62 Sridhara Dasu *

United States
University of Wisconsin Madison Natural Sciences / Physics
Particle Physics|
221 160 0.724 1513 1176 0.777 218499 117746 0.539
63 1 1 12 63 Yorgos Tsipolitis *

Greece
National Technical University of Athens Natural Sciences / Physics
particle physics|detector physics|
221 174 0.787 1075 864 0.804 210712 130043 0.617
64 2 7 13 64 Amanda Cooper Sarkar *

United Kingdom
University of Oxford Natural Sciences / Physics
Particle physics|
220 175 0.795 1160 976 0.841 214064 135015 0.631
65 1 34 40 65 Yi Cui

United States
Stanford University Engineering & Technology / Nanoscience and Nanotechnology
nanotechnology|energy|environment|2D materials|nanobio|
219 197 0.900 694 658 0.948 211618 137859 0.651
66 1 6 41 66 Dag Gillberg *

Canada
Carleton University Natural Sciences / Physics
Particle physics|Data analysis|Experimental physics|Higgs boson|Jet physics|
219 173 0.790 1063 904 0.850 211080 133526 0.633
67 2 35 42 67 Irving Weissman

United States
Stanford University Natural Sciences / Molecular Biology & Genetics
stem cells|immunology|cancer|developmental biology|phylogeny|
219 125 0.571 858 547 0.638 208597 60982 0.292
68 3 36 43 68 John PA Ioannidis *

United States
Stanford University Medical and Health Sciences / Biostatistics
meta-research|clinical epidemiology|evidence-based medicine|research methods|meta-analysis|
218 155 0.711 1095 921 0.841 372518 262801 0.705
69 1 1 14 69 Ivor Fleck *

Germany
Universität Siegen Natural Sciences / Physics
particle physics|medical imaging|
217 171 0.788 1126 928 0.824 216828 131283 0.605
70 1 8 15 70 Tim D Spector

United Kingdom
King's College London Medical and Health Sciences / Epidemiology and Public Health
medicine|genetics|nutrition|microbiome|
217 158 0.728 1147 958 0.835 188392 103845 0.551
71 1 2 16 71 Gregor Herten *

Germany
Universität Freiburg Natural Sciences / Physics
Particle Physics|High Energy Physics|
216 172 0.796 1350 885 0.656 235172 138114 0.587
72 1 3 17 72 Michael Kobel *

Germany
Technische Universität Dresden Natural Sciences / Physics
Elementarteilchenphysik|
216 173 0.801 1299 1024 0.788 234186 144856 0.619
73 1 2 18 73 Christine Kourkoumelis *

Greece
National and Kapodistrian University of Athens Natural Sciences / Physics
high energy physics|particle physics|calorimeters|muons|calibration systems|
216 177 0.819 1179 866 0.735 225477 136991 0.608
74 3 37 44 74 David M Strom *

United States
University of Oregon Natural Sciences / Physics
Particle Physics|High Energy Physics|
216 152 0.704 1320 789 0.598 223998 105864 0.473
75 2 38 45 75 Haleh Hadavand *

United States
University of Texas Arlington Natural Sciences / Physics
High Energy Physics at the Energy Frontier|
216 170 0.787 1020 846 0.829 213448 134666 0.631
76 1 39 46 76 Mark Neubauer *

United States
University of Illinois Urbana Champaign Natural Sciences / Physics
Particle Physics|Machine Learning|Scientific Computing|
216 168 0.778 1173 920 0.784 197918 113952 0.576
77 1 9 19 77 Thomas Doherty

United Kingdom
University of Strathclyde Engineering & Technology / Computer Science
Software Engineering|Computational Biology|HPC|Physics|
215 152 0.707 1720 1044 0.607 261575 120075 0.459
78 2 40 47 78 Harlan Krumholz

United States
Yale University Medical and Health Sciences / Cardiology
health and health care|
215 134 0.623 1049 852 0.812 261092 120616 0.462
79 5 10 20 79 Michael G Marmot *

United Kingdom
UCL University College London Medical and Health Sciences / Epidemiology and Public Health
Social determinants of health|
215 123 0.572 941 712 0.757 248346 108524 0.437
80 2 41 48 80 Lei Layla Li *

United States
Duke University Natural Sciences / Physics
Experimental high energy physics|Particle physics|
215 170 0.791 1651 1275 0.772 239631 146625 0.612
81 2 2 2 81 Fernando Monticelli *

Argentina
Universidad Nacional de La Plata Natural Sciences / Physics
Física de partículas|LHC|higgs|ATLAS|
215 176 0.819 977 868 0.888 214255 140363 0.655
82 2 42 49 82 Duncan Carlsmith *

United States
University of Wisconsin Madison Natural Sciences / Physics
Elementary Particle Physics|
215 142 0.660 1223 827 0.676 211642 94717 0.448
83 4 11 21 83 Raymond J Dolan

United Kingdom
UCL University College London Medical and Health Sciences / Neuroscience
Neuroscience Decision Making Neural Replay Reinforcement Learning (RL) DopamineComputational Psychiatry|
215 124 0.577 636 564 0.887 164451 56878 0.346
84 7 43 50 84 Mark Daly

United States
Harvard University Natural Sciences / Molecular Biology & Genetics
Genetics|
214 157 0.734 584 499 0.854 331889 160562 0.484
85 1 12 22 85 Nicholas Wareham

United Kingdom
University of Cambridge Medical and Health Sciences / Epidemiology and Public Health
epidemiology|metabolic disease|public health|nutrition|physical activity|
214 156 0.729 1089 948 0.871 261561 146373 0.560
86 1 44 51 86 Frank Geurts *

United States
Rice University Natural Sciences / Physics
heavy-ion physics|high-energy nuclear physics|
214 164 0.766 1049 955 0.910 198511 120975 0.609
87 2 2 23 87 Richard Frackowiak

Switzerland
École Polytechnique Fédérale de Lausanne Medical and Health Sciences / Neuroscience
Human brain structure and function|
214 92 0.430 491 348 0.709 176552 33430 0.189
88 1 2 24 88 Julien Donini *

France
Université Clermont Auvergne Natural Sciences / Physics
particle physics|LHC|ATLAS|machine learning|
213 169 0.793 1118 928 0.830 192625 118668 0.616
89 3 13 25 89 Cornelia M Van Duijn *

United Kingdom
University of Oxford Medical and Health Sciences / Epidemiology and Public Health
213 159 0.746 1035 821 0.793 192363 103315 0.537
90 1 45 52 90 Alan Heeger *

United States
University of California Santa Barbara Natural Sciences / Physics
Semiconducting and metallic polymers|
212 103 0.486 1061 507 0.478 231107 57974 0.251
91 2 3 26 91 Stavros Maltezos *

Greece
National Technical University of Athens Natural Sciences / Physics
High Energy Physics|
212 177 0.835 974 832 0.854 216614 140024 0.646
92 1 46 53 92 Heather Gray *

United States
University of California Berkeley Natural Sciences / Physics
particle physics|
212 176 0.830 869 810 0.932 210664 141190 0.670
93 3 4 27 93 Theo Alexopoulos *

Greece
National Technical University of Athens Natural Sciences / Physics
Experimental High Energy Physics|
212 177 0.835 906 810 0.894 201122 132559 0.659
94 1 1 11 94 Barry Halliwell

Singapore
National University of Singapore Medical and Health Sciences / Biochemistry
free radicals|antioxidants|
211 97 0.460 785 486 0.619 245091 55951 0.228
95 2 5 28 95 Fassouliotis Dimitris *

Greece
National and Kapodistrian University of Athens Natural Sciences / Physics
Elementary particle physics|
211 174 0.825 1135 886 0.781 219226 137057 0.625
96 2 47 54 96 Philip Baringer *

United States
University of Kansas Natural Sciences / Physics
experimental particle physics|high energy physics|collider physics|
211 157 0.744 1556 1074 0.690 215274 113805 0.529
97 1 1 1 97 Rajaâ Cherkaoui El Moursli *

Morocco
Université Mohammed V de Rabat Natural Sciences / Physics
Nuclear Physics|Medical Physics|High Energy Physics|
211 175 0.829 886 803 0.906 204021 138440 0.679
98 1 1 29 98 Hatice Duran Yıldız *

Turkey
Ankara University Natural Sciences / Physics
High Energy Physics|Particle Accelerators|Superconducting Cavity & EM Fields|
211 173 0.820 891 836 0.938 200573 133600 0.666
99 1 14 30 99 Jonathan Hays *

United Kingdom
Queen Mary University of London Natural Sciences / Physics
Particle Physics|Higgs bosons|Machine learning|Big data|Proteomics|
210 158 0.752 1370 1021 0.745 230760 132048 0.572
100 1 3 31 100 Nicola Semprini Cesari *

Italy
Università di Bologna (Università degli Studi di Bologna) Natural Sciences / Physics
Particle Physics|Quantum Mechanics|Quantum Field Theory|History of Physics|Philosophy of Science|
210 173 0.824 1205 969 0.804 216527 141496 0.653