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
Circular economy
E-Waste
Sustainable Waste Management
Mushroom
Environmental Pollution
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
63
44
0.698
* Total i10 IndexRankings
Ranking Based On Selection :2
Environmental Microbiology
Industrial Microbiology
Public Health
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
43
35
0.814
* Total i10 IndexRankings
Ranking Based On Selection :3
Medical
Nutrition
Toxicology and Environmental Biochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
29
14
0.483
* Total i10 IndexRankings
Ranking Based On Selection :4
Oncology
Breast
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
20
0.800
* Total i10 IndexRankings
Ranking Based On Selection :5
Clinical Pharmacology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
23
22
0.957
* Total i10 IndexRankings
Ranking Based On Selection :6
Development Economics
Econometrics
Macroeconometrics modelling
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
22
1.000
* Total i10 IndexRankings
Ranking Based On Selection :7
Biochemistry
Biotechnology
Biofuels and Chemicals
Metabolic engineering
Nutrition and Toxicology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
22
1.000
* Total i10 IndexRankings
Ranking Based On Selection :8
SDE
PDE
ODE
STOCHASTIC APPROXIMATION
PROBABILITY THEORY
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
19
14
0.737
* Total i10 IndexRankings
Ranking Based On Selection :9
Microbiology
Parasitology
Environmental Remidiation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
19
10
0.526
* Total i10 IndexRankings
Ranking Based On Selection :10
Public Health Optometry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
15
0.833
* Total i10 IndexRankings
Ranking Based On Selection :11
AnalyticalChemistry
Food Chemistry
Phytochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
11
0.611
* Total i10 IndexRankings
Ranking Based On Selection :12
Microbiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
17
8
0.471
* Total i10 IndexRankings
Ranking Based On Selection :13
African Literature
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
17
1
0.059
* Total i10 IndexRankings
Ranking Based On Selection :14
Agricultural economics
development economics
food security
poverty studies
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
12
0.750
* Total i10 IndexRankings
Ranking Based On Selection :15
Medical microbiology
Public Health Microbiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
8
0.500
* Total i10 IndexRankings
Ranking Based On Selection :16
Neurobehavior
visual sciences
blood
gastrointestinal tract
ethnopharmacology and applications etc.
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
5
0.313
* Total i10 IndexRankings
Ranking Based On Selection :17
Analytical/environmental chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
15
15
1.000
* Total i10 IndexRankings
Ranking Based On Selection :18
corrosion inhibition
electrochemistry
adsorption
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
15
13
0.867
* Total i10 IndexRankings
Ranking Based On Selection :19
Marketing
Entrepreneurship
customer complaint handling
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
15
12
0.800
* Total i10 IndexRankings
Ranking Based On Selection :20
Agricultural Economics
Social Capital
Gender and Poverty
Jobs and Livelihood
Impact Evaluation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
9
0.643
* Total i10 IndexRankings
Ranking Based On Selection :21
Time Series
Sampling
Population Statistics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
11
0.846
* Total i10 IndexRankings
Ranking Based On Selection :22
history
urban studies
indigenous knowledge
African development
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
1
0.077
* Total i10 IndexRankings
Ranking Based On Selection :23
consumer behaviour
entrepreneurial studies
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
8
0.727
* Total i10 IndexRankings
Ranking Based On Selection :24
Environmental Management
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
5
0.455
* Total i10 IndexRankings
Ranking Based On Selection :25
Econometrics
Macroeconomics
Environmental Economics
Financial Economics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
9
0.900
Nnorom Innocent Chidi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
63
44
0.698
Circular economy
E-Waste
Sustainable Waste Management
Mushroom
Environmental Pollution
Ositadinma Ugbogu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
43
35
0.814
Environmental Microbiology
Industrial Microbiology
Public Health
Friday O. Uhegbu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
29
14
0.483
Medical
Nutrition
Toxicology and Environmental Biochemistry
Charles Adeyinka Adisa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
20
0.800
Ekenjoku A. J
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
23
22
0.957
Emmanuel Uche
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
22
1.000
Development Economics
Econometrics
Macroeconometrics modelling
Emmanuel Okezie
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
22
1.000
Biochemistry
Biotechnology
Biofuels and Chemicals
Metabolic engineering
Nutrition and Toxicology
Bright O. Osu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
19
14
0.737
Victor Oluoha Nwaugo
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
19
10
0.526
Microbiology
Parasitology
Environmental Remidiation
Uzodike Ebele Bridget
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
15
0.833
Sunday Onyekwere Eze
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
11
0.611
AnalyticalChemistry
Food Chemistry
Phytochemistry
Ijeoma Iheukwumere
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
17
8
0.471
Joj Nwachukwuagbada
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
17
1
0.059
Osondu Charles Kelechukwu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
12
0.750
Agricultural economics
development economics
food security
poverty studies
Nkechi Chuks Nwachukwu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
8
0.500
Robert Onyemaechi Nneli
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
5
0.313
Neurobehavior
visual sciences
blood
gastrointestinal tract
ethnopharmacology and applications etc.
Prince Ukaogo
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
15
15
1.000
Analytical/environmental chemistry
Anthony Ikechukwu Obike
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
15
13
0.867
corrosion inhibition
electrochemistry
adsorption
Agu Godswill Agu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
15
12
0.800
Marketing
Entrepreneurship
customer complaint handling
Anyiro Chidozie Onyedikachi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
9
0.643
Agricultural Economics
Social Capital
Gender and Poverty
Jobs and Livelihood
Impact Evaluation
Anthony Chukwudi Akpanta
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
11
0.846
Geoffrey Nwaka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
1
0.077
Ogwo Ogwo|Ogwo E. Ogwo, O. E. Ogwo, Ogwo Ogwo E.
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
8
0.727
Chidi Ogbonna
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
5
0.455
Joseph Odionye
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
9
0.900
Econometrics
Macroeconomics
Environmental Economics
Financial Economics