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
African Philosophy
African Metaphysics
African Bioethics
African Traditional Religion
African Cultural Studies
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
111
104
0.937
* Total i10 IndexRankings
Ranking Based On Selection :2
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
70
29
0.414
* Total i10 IndexRankings
Ranking Based On Selection :3
Maritime History
Economic History
Social History
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
44
12
0.273
* Total i10 IndexRankings
Ranking Based On Selection :4
New Testament Theology
African Christology
Greek
Social Justice
Contemporary Ethical Issues.
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
29
16
0.552
* Total i10 IndexRankings
Ranking Based On Selection :5
Materials technology
design and manufacturing
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
24
22
0.917
* Total i10 IndexRankings
Ranking Based On Selection :6
Environmental Ethics
African Environmental Ethics
Ethics
African Philosophy
Social/Political Philosophy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
19
0.864
* Total i10 IndexRankings
Ranking Based On Selection :7
Phylosophy of Science and Epistemology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
13
0.591
* Total i10 IndexRankings
Ranking Based On Selection :8
Economic and Social History
with emphasis on Oil and Gas and the Environment in the Niger Delta
Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
7
0.333
* Total i10 IndexRankings
Ranking Based On Selection :9
African philosophy
bioethics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
15
0.750
* Total i10 IndexRankings
Ranking Based On Selection :10
identity and migration studies
borderland research and african history
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
11
0.550
* Total i10 IndexRankings
Ranking Based On Selection :11
Logic
Foundations of Mathematics
Philosophy of Science
Leadership Philosophy & African Philosophy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
17
0.944
* Total i10 IndexRankings
Ranking Based On Selection :12
African & Nigerian History
Women History
Islam
Religious Conversions
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
17
10
0.588
* Total i10 IndexRankings
Ranking Based On Selection :13
History
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
17
2
0.118
* Total i10 IndexRankings
Ranking Based On Selection :14
Islamic Juristprudence/ Family Laws
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
10
0.625
* Total i10 IndexRankings
Ranking Based On Selection :15
Epistemology
Ethics and African Philosophy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
8
0.500
* Total i10 IndexRankings
Ranking Based On Selection :16
Philosophy
Ibuanyidanda (Complementary Philosophy)
African Philosophy.
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
15
9
0.600
* Total i10 IndexRankings
Ranking Based On Selection :17
Religion and Human Relations
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
9
0.643
* Total i10 IndexRankings
Ranking Based On Selection :18
Philosophy
Religion
Theology
Ethics
Humanities Research Methodologies
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
13
1.000
* Total i10 IndexRankings
Ranking Based On Selection :19
African history
cultural studies
development studies democracy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
9
0.692
* Total i10 IndexRankings
Ranking Based On Selection :20
Islamic thought
Islamization of knowledge and contemporary Issues
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
6
0.500
* Total i10 IndexRankings
Ranking Based On Selection :21
Philosophy of Religion
African Pentecostalism
African Religion and Culture
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
6
0.500
* Total i10 IndexRankings
Ranking Based On Selection :22
History
Conflict Resolution
Ethnicisation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
2
0.182
* Total i10 IndexRankings
Ranking Based On Selection :23
Philosophy of Education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
8
0.800
* Total i10 IndexRankings
Ranking Based On Selection :24
Philosophy of Education and Foundations of Education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
7
0.700
* Total i10 IndexRankings
Ranking Based On Selection :25
Diplomatic History
Diplomacy
African Political History
Nigerian History
American History
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
9
1.000
Kanu Ikechukwu Anthony
Tansian University
Umunya, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
111
104
0.937
African Philosophy
African Metaphysics
African Bioethics
African Traditional Religion
African Cultural Studies
Ogbu Kalu
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
70
29
0.414
Ayodeji Olukoju.
University of Lagos
Lagos, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
44
12
0.273
Maritime History
Economic History
Social History
Chinwokwu Emmanuel Nlenanya
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
29
16
0.552
New Testament Theology
African Christology
Greek
Social Justice
Contemporary Ethical Issues.
Christian Emeka Okafor
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
24
22
0.917
Materials technology
design and manufacturing
Samuel Akpan Bassey
University of Calabar
Calabar, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
19
0.864
Environmental Ethics
African Environmental Ethics
Ethics
African Philosophy
Social/Political Philosophy
Christian Onuorah Agbo
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
13
0.591
Phylosophy of Science and Epistemology
Samuel Ovuete Aghalino
University of Ilorin
Ilorin, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
7
0.333
Economic and Social History
with emphasis on Oil and Gas and the Environment in the Niger Delta
Nigeria
Fayemi Ademola
University of Lagos
Lagos, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
15
0.750
African philosophy
bioethics
Olukoya Ogen
Osun State University
Oshogbo, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
11
0.550
identity and migration studies
borderland research and african history
Christopher Alexander Udofia|Udofia Christopher Alexander, Udofia C. A, CA Udofia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
17
0.944
Logic
Foundations of Mathematics
Philosophy of Science
Leadership Philosophy & African Philosophy
Egodi Uchendu
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
17
10
0.588
African & Nigerian History
Women History
Islam
Religious Conversions
Okon E. Uya
University of Calabar
Calabar, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
17
2
0.118
Abdulwahab Abdulqadir Ibrahim
Nasarawa State University
Keffi, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
10
0.625
Islamic Juristprudence/ Family Laws
Ozumba Godfrey Okechukwu
University of Calabar
Calabar, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
8
0.500
Epistemology
Ethics and African Philosophy
Innocent Asouzu
University of Calabar
Calabar, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
15
9
0.600
Philosophy
Ibuanyidanda (Complementary Philosophy)
African Philosophy.
Oliver Uche
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
9
0.643
Peter Oo Ottuh|P. O. O. Ottuh, Peter Ottuh, Peter Oghenefavwe Oritsemuwa Ottuh
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
13
1.000
Philosophy
Religion
Theology
Ethics
Humanities Research Methodologies
Emmanuel Oladipo Ojo
Ekiti State University Ado Ekiti
Ado-Ekiti, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
9
0.692
African history
cultural studies
development studies democracy
Rafiu Ibrahim Adebayo
University of Ilorin
Ilorin, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
6
0.500
Islamic thought
Islamization of knowledge and contemporary Issues
Benson Ohihon Igboin
Adekunle Ajasin University
Akungba Akoko, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
6
0.500
Philosophy of Religion
African Pentecostalism
African Religion and Culture
Olayemi Akinwumi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
2
0.182
History
Conflict Resolution
Ethnicisation
Micheal Olalekan Olatunji
Ajayi Crowther University Oyo
Oyo Town, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
8
0.800
Musa Ruwa
University of Maiduguri
Maiduguri, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
7
0.700
Philosophy of Education and Foundations of Education
Johnson Olaosebikan Aremu
Ekiti State University Ado Ekiti
Ado-Ekiti, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
9
1.000
Diplomatic History
Diplomacy
African Political History
Nigerian History
American History