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
housing
small towns
mining towns
public health
children
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
116
79
0.681
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :2
Organic Chemistry
Nano Science
Clinical Biochemistry
Exosomes
Extracellular Vesicles
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
75
72
0.960
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :3
Phytomedicine
Phytopharmacology
Bioactivity
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
69
0.852
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :4
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
74
61
0.824
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :5
Pathogenic yeasts
Bioactive lipids
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
72
45
0.625
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :6
Virology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
51
44
0.863
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :7
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 :8
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 :9
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
35
0.854
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :10
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 :11
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 :12
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 :13
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 :14
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 :15
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 :16
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 :17
Microbiology
bioinformatics
microbial community analysis
next generation sequence analysis
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
22
1.000
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :18
Health
tuberculosis
HIV
hospitals
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
20
0.541
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :19
Virology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
20
0.667
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :20
Health
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
19
0.345
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :21
Microbiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
47
18
0.383
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :22
Traditional medicine
Nanoparticles
Medical Biochemistry
Cancer therapeutics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
17
17
1.000
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :23
HIV/AIDS treatment outcomes and HIV immunology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
24
16
0.667
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :24
Adult Neurology Rehabilitation
Quality of life
stroke rehabilitation ...
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
15
0.750
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :25
Infectious diseases
diagnostic
Vaccine
drug development
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
15
14
0.933
Lochner Marais
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
116
79
0.681
housing
small towns
mining towns
public health
children
Anand Krishnan
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
75
72
0.960
Organic Chemistry
Nano Science
Clinical Biochemistry
Exosomes
Extracellular Vesicles
Tom Ashafa
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
69
0.852
Phytomedicine
Phytopharmacology
Bioactivity
Felicity Burt
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
74
61
0.824
Carolina Pohl
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
72
45
0.625
Pathogenic yeasts
Bioactive lipids
Dominique Goedhals
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
51
44
0.863
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
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
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
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
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
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
Errol Cason
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
22
1.000
Microbiology
bioinformatics
microbial community analysis
next generation sequence analysis
JC (Christo) Heunis|C Heunis, James Christoffel Heunis, JC Heunis
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
20
0.541
Health
tuberculosis
HIV
hospitals
Hester G. O'neill
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
20
0.667
HCJ Van Rensburg
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
19
0.345
Robert Bragg
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
47
18
0.383
Charlette Tiloke
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
17
17
1.000
Traditional medicine
Nanoparticles
Medical Biochemistry
Cancer therapeutics
Joseph B. Sempa
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
24
16
0.667
HIV/AIDS treatment outcomes and HIV immunology
Mudzi W
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
15
0.750
Adult Neurology Rehabilitation
Quality of life
stroke rehabilitation ...
Makoah, Nigel Aminake
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
15
14
0.933
Infectious diseases
diagnostic
Vaccine
drug development