Citation Rankings
Highly Cited Researchers
Highly Cited Researchers Citation Rankings 2025
The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
Natural Products Chemistry
bioactives
antioxidant
antiinflammatory
anticancer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,658
1,683
0.633
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Foundation Studies & Sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
642
94
0.146
* Total Citation Counts Rankings
Ranking Based On Selection: 3
chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
267
227
0.850
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Nuclear Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
218
146
0.670
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Pharmacy Practice
Pharmacoeconomics and Pharmacoepidemiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
183
156
0.852
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Applied Mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
180
175
0.972
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Artificial Intelligence
Machine Learning Algorithms
Computer and Systems Security
Robotics & 3D Modeling and Simulation
Bloc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
174
163
0.937
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Natural Science
Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
167
164
0.982
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
164
139
0.848
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Green chemistry
Catalysis
Biomass
Biofuels
Natural products
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
160
158
0.988
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Rain water harvesting
Marketing
Management Information System
Environmental management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
155
155
1.000
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Information System
IT
Software Engineering
DataBase
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
155
50
0.323
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Clinical Pharmacy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
128
100
0.781
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Pharmacology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
101
100
0.990
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Electronics
telecommunication engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
91
58
0.637
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Dynamical decoupling
laser physics
computational physics
solar cell
medical physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
84
62
0.738
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Pharmaceutical Microbiology
Microbial Genomics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
78
74
0.949
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Clinical anatomy and Clinical embryology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
77
46
0.597
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Biological activity and phytochemistry of medicinal plants
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
75
66
0.880
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Petroleum geology
Agrominerals
Alluvial Mining and Processing
Economic and Mining Geology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70
32
0.457
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Natural product
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53
53
1.000
* Total Citation Counts Rankings
Ranking Based On Selection: 22
orthopedics
orthopaedic oncology
Medical education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53
48
0.906
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Molecular biology
Bioinformatics
Microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51
50
0.980
* Total Citation Counts Rankings
Ranking Based On Selection: 24
pharmacy practice
pharmaceutical technology
herbal medicines
nutracuticals
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30
28
0.933
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Computer Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29
9
0.310
* Total Citation Counts Rankings
Rankings
355,902
21
1
Ranking Based On Selection: 1
Azhari Hamid Nour
International University of Africa
Khartoum, Sudan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,658
1,683
0.633
Natural Products Chemistry
bioactives
antioxidant
antiinflammatory
anticancer
* Total Citation Counts Rankings
Rankings
833,876
273
1
Ranking Based On Selection: 2
Jack Kingsley Israel
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
642
94
0.146
* Total Citation Counts Rankings
Rankings
1,173,149
283
2
Ranking Based On Selection: 3
Mahmoud Mohamed Ali
International University of Africa
Khartoum, Sudan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
267
227
0.850
* Total Citation Counts Rankings
Rankings
1,258,984
330
3
Ranking Based On Selection: 4
Ibrahim Alfadil Alnour
International University of Africa
Khartoum, Sudan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
218
146
0.670
* Total Citation Counts Rankings
Rankings
1,332,911
391
4
Ranking Based On Selection: 5
Mohamed Awad Mousnad
International University of Africa
Khartoum, Sudan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
183
156
0.852
Pharmacy Practice
Pharmacoeconomics and Pharmacoepidemiology
* Total Citation Counts Rankings
Rankings
1,339,567
402
5
Ranking Based On Selection: 6
Mojeeb Al-Rahman El-Nor Osman
International University of Africa
Khartoum, Sudan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
180
175
0.972
* Total Citation Counts Rankings
Rankings
1,354,185
729
2
Ranking Based On Selection: 7
Edison Kagona
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
174
163
0.937
Artificial Intelligence
Machine Learning Algorithms
Computer and Systems Security
Robotics & 3D Modeling and Simulation
Bloc
* Total Citation Counts Rankings
Rankings
1,371,412
437
6
Ranking Based On Selection: 8
Ibrahim Yaagoub Erwa
International University of Africa
Khartoum, Sudan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
167
164
0.982
* Total Citation Counts Rankings
Rankings
1,379,924
764
3
Ranking Based On Selection: 9
Miriam Katunze
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
164
139
0.848
* Total Citation Counts Rankings
Rankings
1,389,850
455
7
Ranking Based On Selection: 10
Omer Adam Omer Ishag
International University of Africa
Khartoum, Sudan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
160
158
0.988
Green chemistry
Catalysis
Biomass
Biofuels
Natural products
* Total Citation Counts Rankings
Rankings
1,403,251
788
4
Ranking Based On Selection: 11
Venkatesh Andavar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
155
155
1.000
Rain water harvesting
Marketing
Management Information System
Environmental management
* Total Citation Counts Rankings
Rankings
1,405,583
467
8
Ranking Based On Selection: 12
Adil Ali Abdelaziz
International University of Africa
Khartoum, Sudan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
155
50
0.323
* Total Citation Counts Rankings
Rankings
1,485,984
542
9
Ranking Based On Selection: 13
Omalhassan Amir Abdelkarim
International University of Africa
Khartoum, Sudan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
128
100
0.781
* Total Citation Counts Rankings
Rankings
1,580,831
634
10
Ranking Based On Selection: 14
Mazin Yousif
International University of Africa
Khartoum, Sudan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
101
100
0.990
* Total Citation Counts Rankings
Rankings
1,624,088
676
11
Ranking Based On Selection: 15
Nassrin Ibrahim Mohamed Elamin
International University of Africa
Khartoum, Sudan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
91
58
0.637
Electronics
telecommunication engineering
* Total Citation Counts Rankings
Rankings
1,654,545
710
12
Ranking Based On Selection: 16
Mustafa Ahmed Ali Ahmed
International University of Africa
Khartoum, Sudan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
84
62
0.738
Dynamical decoupling
laser physics
computational physics
solar cell
medical physics
* Total Citation Counts Rankings
Rankings
1,680,993
741
13
Ranking Based On Selection: 17
Mohamed Abdelrahman Hussain
International University of Africa
Khartoum, Sudan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
78
74
0.949
Pharmaceutical Microbiology
Microbial Genomics
* Total Citation Counts Rankings
Rankings
1,687,513
753
14
Ranking Based On Selection: 18
Ammar Ma Mohammed
International University of Africa
Khartoum, Sudan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
77
46
0.597
Clinical anatomy and Clinical embryology
* Total Citation Counts Rankings
Rankings
1,695,678
760
15
Ranking Based On Selection: 19
Ahmed A Elshikh|Ahmed Abdelhafiz Alshikh Abdalla
International University of Africa
Khartoum, Sudan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
75
66
0.880
Biological activity and phytochemistry of medicinal plants
* Total Citation Counts Rankings
Rankings
1,722,249
783
16
Ranking Based On Selection: 20
Mutwakil Nafi
International University of Africa
Khartoum, Sudan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70
32
0.457
Petroleum geology
Agrominerals
Alluvial Mining and Processing
Economic and Mining Geology
* Total Citation Counts Rankings
Rankings
1,810,378
887
17
Ranking Based On Selection: 21
Awadalla Babiker Omer
International University of Africa
Khartoum, Sudan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53
53
1.000
* Total Citation Counts Rankings
Rankings
1,813,632
893
18
Ranking Based On Selection: 22
Hassan Elbahri|Hassan Elbahari
International University of Africa
Khartoum, Sudan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53
48
0.906
orthopedics
orthopaedic oncology
Medical education
* Total Citation Counts Rankings
Rankings
1,824,350
906
19
Ranking Based On Selection: 23
Ahmed Osman Mohamed
International University of Africa
Khartoum, Sudan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51
50
0.980
Molecular biology
Bioinformatics
Microbiology
* Total Citation Counts Rankings
Rankings
1,978,423
1,082
20
Ranking Based On Selection: 24
Asma Mahmoud
International University of Africa
Khartoum, Sudan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30
28
0.933
pharmacy practice
pharmaceutical technology
herbal medicines
nutracuticals
* Total Citation Counts Rankings
Rankings
1,990,319
1,097
21
Ranking Based On Selection: 25
Ashraf Alzubir
International University of Africa
Khartoum, Sudan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29
9
0.310