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
924,800
Country Rank
7,742
Institution Rank : 2
![](https://cdn.adscientificindex.com/logos/12471.png)
![Nigeria](/flags/ng.png)
![David A. Onu](/pictures/4f/4309609.jpg)
inorganic Redox Kinetics and mechanism/ science education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
8
0.800
* Total i10 Index Rankings
World Rank
1,391,895
Country Rank
19,521
Institution Rank : 5
![](https://cdn.adscientificindex.com/logos/12471.png)
![Nigeria](/flags/ng.png)
![Adamu Tairu Arome](/pictures/88/4309611.jpg)
Science Education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
3
1.000
* Total i10 Index Rankings
World Rank
1,723,093
Country Rank
29,697
Institution Rank : 9
![](https://cdn.adscientificindex.com/logos/12471.png)
![Nigeria](/flags/ng.png)
![Muawiyya Usman](/pictures/c0/5012642.jpg)
Mathematics Education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
* Total i10 Index Rankings
World Ranking
924,800
Country Ranking
7,742
Institution Ranking
2
David A. Onu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
8
0.800
![](https://cdn.adscientificindex.com/logos/12471.png)
inorganic Redox Kinetics and mechanism/ science education
* Total i10 Index Rankings
World Ranking
1,391,895
Country Ranking
19,521
Institution Ranking
5
Adamu Tairu Arome
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
3
1.000
* Total i10 Index Rankings
World Ranking
1,723,093
Country Ranking
29,697
Institution Ranking
9
Muawiyya Usman
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000