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 :26
Image analysis
mammography
mri
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
48
40
0.833
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :27
ferrocene
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
89
39
0.438
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :28
Hydropedology
soil erosion
soil physics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
39
0.867
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :29
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
38
38
1.000
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :30
Public Health
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
39
36
0.923
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :31
Animal breeding
genetics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
64
35
0.547
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :32
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
35
0.854
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :33
coordination chemistry
reaction mechanisms
crystallography
catalysis
radiopharmacy models
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
147
34
0.231
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :34
Yeast Taxonomy
Signal trasnduction
Pathogenic yeasts
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
52
33
0.635
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :35
Nutrition
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
33
0.733
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :36
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
52
32
0.615
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :37
Health Systems Research
TB
HIV
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
46
32
0.696
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :38
Biostatistics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
85
31
0.365
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :39
psychobiography
psychobiographical case studies
developmental trajectories
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
38
31
0.816
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :40
Science Education
Instructional Leadership
Teacher Change
Education Policy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
31
0.838
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :41
Solid state Physics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
31
0.886
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :42
Molecular Virology
Genomics
Next Generation Sequencing
Vaccines
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
31
0.969
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :43
Organic Synthesis
Process Chemistry
Drug Discovery
Catalysis
Green Chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
38
30
0.789
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :44
Health Systems Research
Tuberculosis
HIV/AIDS
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
30
0.811
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :45
chemistry
materials
crystallography
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
61
29
0.475
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :46
Academic literacy
Language testing
Language assessment
Theory of applied linguistics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
29
0.527
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :47
IPE
preceptorship
nursing education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
34
29
0.853
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :48
Chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
42
28
0.667
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :49
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
28
0.875
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :50
Entrepreneurship
Business Management
Corporate Financ Operations management
Business polices and problems
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
28
0.933
William Rae
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
48
40
0.833
Image analysis
mammography
mri
Jannie Swarts
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
89
39
0.438
Johan Van Tol
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
39
0.867
Hydropedology
soil erosion
soil physics
Diederik J Opperman
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
38
38
1.000
Joyce Tsoka-Gwegweni
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
39
36
0.923
Frederick Neser
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
64
35
0.547
Animal breeding
genetics
Satyajit Tripathy
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
35
0.854
Andreas Roodt
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
147
34
0.231
coordination chemistry
reaction mechanisms
crystallography
catalysis
radiopharmacy models
Jacobus Albertyn
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
52
33
0.635
Yeast Taxonomy
Signal trasnduction
Pathogenic yeasts
Corinna Walsh
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
33
0.733
G Osthoff
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
52
32
0.615
Michelle Engelbrecht
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
46
32
0.696
Health Systems Research
TB
HIV
Robert Schall
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
85
31
0.365
Paul JP Fouché
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
38
31
0.816
psychobiography
psychobiographical case studies
developmental trajectories
Loyiso Jita
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
31
0.838
Science Education
Instructional Leadership
Teacher Change
Education Policy
Lehlohonolo Koao
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
31
0.886
Martin Munene Nyaga
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
31
0.969
Molecular Virology
Genomics
Next Generation Sequencing
Vaccines
Mukut Gohain
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
38
30
0.789
Organic Synthesis
Process Chemistry
Drug Discovery
Catalysis
Green Chemistry
N Gladys Kigozi
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
30
0.811
Health Systems Research
Tuberculosis
HIV/AIDS
Hendrik Gideon Visser
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
61
29
0.475
chemistry
materials
crystallography
Albert Weideman
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
29
0.527
Academic literacy
Language testing
Language assessment
Theory of applied linguistics
Yvonne Botma
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
34
29
0.853
IPE
preceptorship
nursing education
Lizette Erasmus
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
42
28
0.667
Botma Visser
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
28
0.875
Neneh Brownhilder
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
28
0.933
Entrepreneurship
Business Management
Corporate Financ Operations management
Business polices and problems