Total 2,424,675 scientists, country 221, and institutions 24,468 are evaluated in the Productivity Rankings, an exclusive service provided by AD Scientific Index. This ranking measures and highlights the scientific productivity of researchers based on the i10 index (number of publications with at least 10 citations). This system identifies highly productive scientists across disciplines, institutions, and regions, contributing to the development of evidence-based academic policies and effective incentive mechanisms. The rankings include global, regional, and institutional analyses, along with specialized rankings such as Scientists' Last 6 Years' i10 Index and Universities' i10 Index Rankings 2025. With Premium Membership, you can:
- Gain full access to detailed comparisons and advanced analytics,
- Objectively evaluate your academic productivity,
- Make strategic, data-driven decisions to enhance performance.
* Total i10 IndexRankings
Ranking Based On Selection: 1
![Chinyere Aloke](https://cdn.adscientificindex.com/pictures/cd/5795261.jpg)
Phytomedicine and chronic diseases
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
23
20
0.870
* Total i10 IndexRankings
Ranking Based On Selection: 2
![Christiana Ogonna Igberi](https://cdn.adscientificindex.com/pictures/cf/5795010.jpg)
climate change adaptation and education
farming systems transformation
efficient resource use
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
19
0.950
* Total i10 IndexRankings
Ranking Based On Selection: 3
![Ogueji Emmanuel Okechukwu](https://cdn.adscientificindex.com/pictures/b4/5795493.jpg)
Aquatic Toxicology/ Environmental Biology • Hydrobiology • Fish Breeding and Genetics • Science Education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
16
0.800
* Total i10 IndexRankings
Ranking Based On Selection: 4
![Sani Saidu](https://cdn.adscientificindex.com/pictures/97/4530854.jpg)
Cancer
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
14
0.875
* Total i10 IndexRankings
Ranking Based On Selection: 5
![Kanu Clementina](/user/assets/images/profile/no-profile-photo.png)
Accounting and Finance
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
13
0.813
* Total i10 IndexRankings
Ranking Based On Selection: 6
![Duruzor Gloria](https://cdn.adscientificindex.com/pictures/35/5796443.jpg)
Accountinng
Finance
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
15
15
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 7
![Esonye Chizoo](https://cdn.adscientificindex.com/pictures/25/5796137.jpg)
Renewable Energy( Biofuel)
Process optimization and modelling
Chemical kinetics and Catalysis
Engine performance and Combusti
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
15
14
0.933
* Total i10 IndexRankings
Ranking Based On Selection: 8
![Hyginus Emeka Nwosu](https://cdn.adscientificindex.com/pictures/95/5795622.jpg)
Strategic Management
Entrepreneurship
Personnel Management
Educational Management
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
14
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 9
![Chukwuma Ogbonnaya, R.Engr, Miet, Fhea](https://cdn.adscientificindex.com/pictures/1c/5795886.jpg)
Renewable Energy Technologies
Fuel cells
Manufacturing Systems Engineering
Operations Management
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
14
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 10
![Oje, Obinna Aru Nig](https://cdn.adscientificindex.com/pictures/e1/5797859.jpg)
Environmental Biochemistry
Industrial Biochemistry
and Biotechnology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
7
0.538
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* Total i10 IndexRankings
Ranking Based On Selection: 11
![Njoku Rex-Clovis C|Chinonye Rex-Clovis Njoku](/user/assets/images/profile/no-profile-photo.png)
Toxicology
Chemoprevention
Reproductive Biology
Oncology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
12
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 12
![Ayatu Ojonugwa Usman](https://cdn.adscientificindex.com/pictures/e6/4531449.jpg)
Applied Geophysics
Environmental Geosciences and Hydrogeophysics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
12
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 13
![Ogochukwu Caroline Chiamah](https://cdn.adscientificindex.com/pictures/30/5798255.jpg)
Zoology
Parasitology
Bioinformatics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
10
0.833
* Total i10 IndexRankings
Ranking Based On Selection: 14
![Nwankwo Uba Nwankwo](https://cdn.adscientificindex.com/pictures/bd/5795006.jpg)
Renewable Energy: Solar Cell Materials and Devices
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
10
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 15
![Uma Uzubi Uma](https://cdn.adscientificindex.com/pictures/08/5799645.jpg)
Power Systems
Electrical Machines
Power Systems Protection
Renewable Energy Networks
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
7
0.875
* Total i10 IndexRankings
Ranking Based On Selection: 16
![Ar Chikwenze](/user/assets/images/profile/no-profile-photo.png)
Solid State Physics: Semi-Conductor Development and Applications.
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
5
0.625
* Total i10 IndexRankings
Ranking Based On Selection: 17
![Ugbogu Chikwendu](https://cdn.adscientificindex.com/pictures/4a/5797904.jpg)
Supervision
Leadership and conflict management
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
7
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 18
![Chisom Esther Ogbonnaya](https://cdn.adscientificindex.com/pictures/20/5798680.jpg)
Clinical Child and Adolescent Psychology
Health Psychology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
7
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 19
![Uchenna R. Ezeilo](https://cdn.adscientificindex.com/pictures/d6/5797903.jpg)
Fermentation Technology
Microbial Enzyme Technology
Biomass
Industrial Biotechnology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
7
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 20
![Okechineke, Benjamin Chukwunonso](https://cdn.adscientificindex.com/pictures/ac/5801887.jpg)
science
technology
engineering and mathematics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
6
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 21
![Arinze Nwadiogo Chisom](https://cdn.adscientificindex.com/pictures/0b/4566357.jpg)
Applied Psychology
Clinical/ Occupational Psychology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
6
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 22
![Henry Aloh](https://cdn.adscientificindex.com/pictures/c7/5801673.jpg)
Health Economics
Public Health and Social outcome of Health related issues
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
6
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 23
![Angela Eze](https://cdn.adscientificindex.com/pictures/e8/4907286.jpg)
Reading and writing
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
6
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 24
![Patience Nkemjika Ogbu](https://cdn.adscientificindex.com/pictures/c0/5801745.jpg)
Phytomedicine
Diabetes
Prostatic diseseas and Toxicological studies
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 25
![Onwe Mkpuma Rock.](https://cdn.adscientificindex.com/pictures/f2/5799857.jpg)
Environmental/Hydrogeology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
Chinyere Aloke
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
23
20
0.870
Christiana Ogonna Igberi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
19
0.950
climate change adaptation and education
farming systems transformation
efficient resource use
Ogueji Emmanuel Okechukwu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
16
0.800
Aquatic Toxicology/ Environmental Biology • Hydrobiology • Fish Breeding and Genetics • Science Education
Sani Saidu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
14
0.875
Kanu Clementina
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
13
0.813
Duruzor Gloria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
15
15
1.000
Esonye Chizoo
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
15
14
0.933
Renewable Energy( Biofuel)
Process optimization and modelling
Chemical kinetics and Catalysis
Engine performance and Combusti
Hyginus Emeka Nwosu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
14
1.000
Strategic Management
Entrepreneurship
Personnel Management
Educational Management
Chukwuma Ogbonnaya, R.Engr, Miet, Fhea
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
14
1.000
Renewable Energy Technologies
Fuel cells
Manufacturing Systems Engineering
Operations Management
Oje, Obinna Aru Nig
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
7
0.538
Environmental Biochemistry
Industrial Biochemistry
and Biotechnology
Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast!
Njoku Rex-Clovis C|Chinonye Rex-Clovis Njoku
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
12
1.000
Ayatu Ojonugwa Usman
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
12
1.000
Applied Geophysics
Environmental Geosciences and Hydrogeophysics
Ogochukwu Caroline Chiamah
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
10
0.833
Nwankwo Uba Nwankwo
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
10
1.000
Uma Uzubi Uma
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
7
0.875
Power Systems
Electrical Machines
Power Systems Protection
Renewable Energy Networks
Ar Chikwenze
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
5
0.625
Solid State Physics: Semi-Conductor Development and Applications.
Ugbogu Chikwendu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
7
1.000
Chisom Esther Ogbonnaya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
7
1.000
Uchenna R. Ezeilo
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
7
1.000
Fermentation Technology
Microbial Enzyme Technology
Biomass
Industrial Biotechnology
Okechineke, Benjamin Chukwunonso
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
6
1.000
Arinze Nwadiogo Chisom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
6
1.000
Henry Aloh
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
6
1.000
Health Economics
Public Health and Social outcome of Health related issues
Angela Eze
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
6
1.000
Patience Nkemjika Ogbu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
Phytomedicine
Diabetes
Prostatic diseseas and Toxicological studies
Onwe Mkpuma Rock.
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000