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. Click for "last 6 years' i10 index". Also see: Universities Rankings 2024 (Sort by : Total i10 Index) and Universities Rankings 2024 (Sort by : Last 6 Years i10 Index)
* Total i10 Index Rankings
World Rank
1,488,981
Country Rank
11,373
Institution Rank : 77
![](https://cdn.adscientificindex.com/logos/7703.png)
![South Africa](/flags/za.png)
![Varsetile Nkwinika](/pictures/87/4914390.jpg)
Medical Virology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
* Total i10 Index Rankings
World Rank
1,810,897
Country Rank
14,638
Institution Rank : 107
![](https://cdn.adscientificindex.com/logos/7703.png)
![South Africa](/flags/za.png)
![Lerato Kgosana](/user/assets/images/profile/no-profile-photo.png)
Medical Virology
Microbiome
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
* Total i10 Index Rankings
World Ranking
1,488,981
Country Ranking
11,373
Institution Ranking
77
Varsetile Nkwinika
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
* Total i10 Index Rankings
World Ranking
1,810,897
Country Ranking
14,638
Institution Ranking
107
Lerato Kgosana
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
![](https://cdn.adscientificindex.com/logos/7703.png)
Medical Virology
Microbiome