Productivity Rankings is a unique service offered only by “AD Scientific Index”. This is a ranking system derived from the i10 index in order to show the productivity of the scientist in publishing scientific articles of value. Productivity Rankings is an instrument that lists productive scientists in a given area, discipline, university, and country and can guide the development of meaningful incentives and academic policies. The world rankings, regional rankings, and university rankings of scientists in this table are developed based on the total i10 index. Additionally, click to view the special rankings based on Productivity Rankings: Scientists Last 6 years' i10 Index", Universities Total i10 Index Rankings 2025, Universities Last 6 Years i10 Index Rankings 2025 "Art and Humanities i10 Productivity Rankings" and "Social Sciences and Humanities i10 Productivity Rankings".
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :1
Environmental Technology
Restoration Ecology
Aquatic Ecology
Planktonology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
144
94
0.653
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :2
Glycoinformatics
bioinformatics
neuroinformatics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
72
52
0.722
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :3
Microbiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
52
33
0.635
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :4
Quasar absorption line spectroscopy
interstellar medium astrophysics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
51
32
0.627
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :5
chemical engineering
powder technology
applied electrostatics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
56
30
0.536
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :6
Econometrics
Financial Econometrics
Statistics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
38
25
0.658
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :7
Social Dilemmas
Evolutionary Game Theory
Social Simulation
Computational Social Science
Evolution of Cooperation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
29
22
0.759
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :8
Biological Oceanography
Environmental Optics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
28
19
0.679
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :9
photobioreactor
nitrogen removal
microgravity
resource recovery
biological applications
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
18
0.857
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :10
Protein Science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
17
0.459
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :11
Nanomaterials
Themoresponsive polymer
CO2 separation
photocatalysts
biomass gasification
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
28
16
0.571
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :12
urban planning
urban studies
transportation
environmental studies
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
15
0.469
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :13
Soil Science
Biochar
Tropical Forest Conservation
Weste Management
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
15
0.750
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :14
Political Science
Armed Conflict
Democratization
Political Islam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
19
14
0.737
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :15
protein folding and assembly
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
40
12
0.300
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :16
Social Justice Education
Intergroup/Interfaith Dialogue
Religious Diversity
Critical Religious Identity Studies
Higher Educa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
12
0.923
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :17
Adolescent development
culture
parenting
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
11
0.786
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :18
Developmental Psychology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
11
0.786
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :19
Insect Foraging
Movement Strategy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
10
0.909
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :20
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
9
0.257
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :21
Biogeochemical cycling in aquatic ecosystems. Nitrogen and carbon cycling. Wetland plant/sediment
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
9
0.692
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :22
Microbiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
9
0.900
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :23
urban politics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
8
0.667
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :24
economic development
international economics
public health
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
8
0.800
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :25
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
8
0.800
Tatsuki Toda
Soka University
Hachioji, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
144
94
0.653
Environmental Technology
Restoration Ecology
Aquatic Ecology
Planktonology
Kiyoko Aoki Kinoshita
Soka University
Hachioji, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
72
52
0.722
Glycoinformatics
bioinformatics
neuroinformatics
Norio Kurosawa
Soka University
Hachioji, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
52
33
0.635
Bryan Penprase
Soka University of America
Aliso Viejo, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
51
32
0.627
Quasar absorption line spectroscopy
interstellar medium astrophysics
Tatsushi Matsuyama
Soka University
Hachioji, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
56
30
0.536
chemical engineering
powder technology
applied electrostatics
Manabu Asai
Soka University
Hachioji, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
38
25
0.658
Econometrics
Financial Econometrics
Statistics
Isamu Okada
Soka University
Hachioji, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
29
22
0.759
Social Dilemmas
Evolutionary Game Theory
Social Simulation
Computational Social Science
Evolution of Cooperation
Victor S Kuwahara
Soka University
Hachioji, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
28
19
0.679
Biological Oceanography
Environmental Optics
Shinichi Akizuki
Soka University
Hachioji, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
18
0.857
photobioreactor
nitrogen removal
microgravity
resource recovery
biological applications
Shuichiro Goda
Soka University
Hachioji, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
17
0.459
Junichi Ida
Soka University
Hachioji, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
28
16
0.571
Nanomaterials
Themoresponsive polymer
CO2 separation
photocatalysts
biomass gasification
Deike Peters
Soka University of America
Aliso Viejo, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
15
0.469
urban planning
urban studies
transportation
environmental studies
Shinjiro Sato
Soka University
Hachioji, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
15
0.750
Soil Science
Biochar
Tropical Forest Conservation
Weste Management
Shane J Barter
Soka University of America
Aliso Viejo, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
19
14
0.737
Political Science
Armed Conflict
Democratization
Political Islam
Masamichi Ikeguchi
Soka University
Hachioji, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
40
12
0.300
protein folding and assembly
Sachi Edwards
Soka University
Hachioji, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
12
0.923
Social Justice Education
Intergroup/Interfaith Dialogue
Religious Diversity
Critical Religious Identity Studies
Higher Educa
Esther S Chang
Soka University of America
Aliso Viejo, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
11
0.786
Shuhei Iimura|飯村 周平
Soka University
Hachioji, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
11
0.786
Tomoko Sakiyama
Soka University
Hachioji, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
10
0.909
Insect Foraging
Movement Strategy
Akio Shimizu
Soka University
Hachioji, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
9
0.257
M Robert Hamersley
Soka University of America
Aliso Viejo, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
9
0.692
Biogeochemical cycling in aquatic ecosystems. Nitrogen and carbon cycling. Wetland plant/sediment
Hiroyuki D Sakai
Soka University
Hachioji, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
9
0.900
Peter Burns
Soka University of America
Aliso Viejo, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
8
0.667
Junyi Liu
Soka University of America
Aliso Viejo, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
8
0.800
economic development
international economics
public health
U Aytun Ozturk|Ugur Aytun Ozturk, U. A. Ozturk
Soka University
Hachioji, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
8
0.800