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".
* Total i10 IndexRankings
Ranking Based On Selection :1
management
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
27
25
0.926
* Total i10 IndexRankings
Ranking Based On Selection :2
Climate Change Finance
Energy Finance
Sustainability studies
Development Finance
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
23
22
0.957
* Total i10 IndexRankings
Ranking Based On Selection :3
Hyperglycemic Emergencies
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
17
16
0.941
* Total i10 IndexRankings
Ranking Based On Selection :4
criminology
political sociology
leadership and governance
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
8
0.667
* Total i10 IndexRankings
Ranking Based On Selection :5
Civil Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
11
1.000
* Total i10 IndexRankings
Ranking Based On Selection :6
Recoverable Resources
Polymer Technology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
10
1.000
* Total i10 IndexRankings
Ranking Based On Selection :7
Policy Sciences
Strategic Studies and Comparative Politics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
8
0.800
* Total i10 IndexRankings
Ranking Based On Selection :8
Radiography and Medical Imaging
medical physics
radiation protection
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
3
0.300
* Total i10 IndexRankings
Ranking Based On Selection :9
Virology
Mycobacteriology and Immunology. Diagnostic Test Validation Studies. Infectious Diseases/Sexually Transmissible Infect
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
5
0.625
* Total i10 IndexRankings
Ranking Based On Selection :10
Neurophysiology
Blood physiology
endocrine physiology
Gastrointestinal physiology
etc.
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
7
0.875
* Total i10 IndexRankings
Ranking Based On Selection :11
Mechanical and Industrial Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
6
1.000
* Total i10 IndexRankings
Ranking Based On Selection :12
Technical efficiency &Economic efficiency in agric production.
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
4
0.667
* Total i10 IndexRankings
Ranking Based On Selection :13
Infertility
reproductive endocrinology and assisted reproduction
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
4
0.667
* Total i10 IndexRankings
Ranking Based On Selection :14
Civil Engineering Water Resources and Environmental Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
2
0.333
* Total i10 IndexRankings
Ranking Based On Selection :15
CSR
Sustainability
capital market
financial economy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
* Total i10 IndexRankings
Ranking Based On Selection :16
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
* Total i10 IndexRankings
Ranking Based On Selection :17
construction soil properties
geohazards
groundwater conditions
environment and sustainable development
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
4
0.800
* Total i10 IndexRankings
Ranking Based On Selection :18
Vocational Education and Entrepreneurship
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
3
0.600
* Total i10 IndexRankings
Ranking Based On Selection :19
Theatre for Development/Development Communication
Film
Culture and Gender Studies.
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
3
0.600
* Total i10 IndexRankings
Ranking Based On Selection :20
Public health
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
* Total i10 IndexRankings
Ranking Based On Selection :21
invivo and invitro Plant research Drug discovery
Natural products and Pharmacokinetics.
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
3
0.600
* Total i10 IndexRankings
Ranking Based On Selection :22
Public Heath and Nursing
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
3
1.000
* Total i10 IndexRankings
Ranking Based On Selection :23
natural products chemistry and synthesis of organic products
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
3
1.000
* Total i10 IndexRankings
Ranking Based On Selection :24
Cardiology
Cardiac electrophysiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
2
0.667
* Total i10 IndexRankings
Ranking Based On Selection :25
Agriculture
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
1
0.333
Leo Ifeanyi
Gregory University, Uturu
Uturu, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
27
25
0.926
Kingsley I. Okere
Gregory University, Uturu
Uturu, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
23
22
0.957
Climate Change Finance
Energy Finance
Sustainability studies
Development Finance
Ignatius Ezeani
Gregory University, Uturu
Uturu, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
17
16
0.941
Thomas Ezeikpe
Gregory University, Uturu
Uturu, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
8
0.667
Benjamin Nnamdi Ekwueme
Gregory University, Uturu
Uturu, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
11
1.000
Joseph
Gregory University, Uturu
Uturu, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
10
1.000
Vincent Onyekwelu Sunday Okeke
Gregory University, Uturu
Uturu, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
8
0.800
Erondu Okechukwu Felix
Gregory University, Uturu
Uturu, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
3
0.300
Radiography and Medical Imaging
medical physics
radiation protection
Eziyi Iche Kalu
Gregory University, Uturu
Uturu, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
5
0.625
Virology
Mycobacteriology and Immunology. Diagnostic Test Validation Studies. Infectious Diseases/Sexually Transmissible Infect
Aduema Wadioni
Gregory University, Uturu
Uturu, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
7
0.875
Neurophysiology
Blood physiology
endocrine physiology
Gastrointestinal physiology
etc.
Okolie Sociis Tobias
Gregory University, Uturu
Uturu, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
6
1.000
Onyemechi Aniedu
Gregory University, Uturu
Uturu, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
4
0.667
Technical efficiency &Economic efficiency in agric production.
Nnabuike Ojiegbe
Gregory University, Uturu
Uturu, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
4
0.667
Infertility
reproductive endocrinology and assisted reproduction
Solomon Ndubuisi Eluozo
Gregory University, Uturu
Uturu, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
2
0.333
Civil Engineering Water Resources and Environmental Engineering
Itotenaan Henry Ogiri
Gregory University, Uturu
Uturu, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
Emmanuel Ekwonwune Nwabueze
Gregory University, Uturu
Uturu, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
Nnamdi Ekeocha
Gregory University, Uturu
Uturu, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
4
0.800
construction soil properties
geohazards
groundwater conditions
environment and sustainable development
Cele Ugochi Njoku
Gregory University, Uturu
Uturu, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
3
0.600
Samuel Okoronkwo Chukwu-Okoronkwo
Gregory University, Uturu
Uturu, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
3
0.600
Theatre for Development/Development Communication
Film
Culture and Gender Studies.
Ijeoma Nduka
Gregory University, Uturu
Uturu, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
Ukegbu Chimere Young
Gregory University, Uturu
Uturu, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
3
0.600
invivo and invitro Plant research Drug discovery
Natural products and Pharmacokinetics.
Chinyere Nwufo
Gregory University, Uturu
Uturu, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
3
1.000
Evelyn U. Godwin - Nwakwasi
Gregory University, Uturu
Uturu, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
3
1.000
Kelechukwu Uwanuruochi
Gregory University, Uturu
Uturu, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
2
0.667
Nwankwo Oo
Gregory University, Uturu
Uturu, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
1
0.333