Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 392 Scientists Citation Rankings - 2025
The Citation Rankings (Highly Cited Researchers) list 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
Internal Medicine
Public Health
Diabetes Mellitus
Nephrology
HIV/AIDS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,530
31,211
0.990
* Total Citation Counts Rankings
Ranking Based On Selection: 2
forestry
vegetation ecology
agriculture
Plant diversity
Regeneration ecology of woody plants
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,240
6,811
0.447
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,824
4,909
0.556
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Cancer
Breast Cancer
gynaecological cancer
affordability of care
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,611
5,138
0.597
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Green Energy Engineering
Integrated Waste Management
Phase Equilibrium Measurement and Computation
VOCs Scrubbing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,567
3,918
0.704
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Organic Chemistry
Medicinal Chemistry
Green Chemistry
Chemical Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,092
1,596
0.313
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Biblical
postcolonial
translation
gender and HIV&AIDS Studies
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,865
1,708
0.351
* Total Citation Counts Rankings
Ranking Based On Selection: 8
CFD
Bio-fluid Mechanics
Heat and Mass transfer
Solute Dispersion
Magnetic Drug Targeting
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,792
3,893
0.812
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Food Science
Enzyme technology
Food product development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,741
2,371
0.500
* Total Citation Counts Rankings
Ranking Based On Selection: 10
wastewater treatment
CFD
photodegradation
adsorption
nanotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,006
1,758
0.439
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Internal medicine
Cardiovascular diseases
Clinical epidemiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,902
3,671
0.941
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Fixed point Theory and Applications
Geometry of Banach spaces
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,618
915
0.253
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Food Chemistry
Grain Science and Technology
Functional Foods
Starches
Food Nutrition
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,438
2,264
0.659
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Atmospheric remote sensing
climate modelling
space physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,437
1,631
0.475
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Forensic chemistry
analytical chemistry
quality assurance
electrochemistry
development of pharmaceuticals
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,431
601
0.175
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Dryland ecosystem
Environment and Development Studies
Rangeland Ecology
Natural Resource Management
Climate Change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,406
1,746
0.513
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Green Manufacturing
Engineering Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,388
2,062
0.609
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Insect physiological ecology
climate change and pest management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,206
2,490
0.777
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Dairy Science and Technology
Food Science
Camels and Camel Products
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,063
1,756
0.573
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Breeding and Genetics
Animal Science
Poultry Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,002
1,674
0.558
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Wireless Sensor Networks
Intelligent Systems
Internet of Vehicles
Embedded Systems
Electronics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,823
1,771
0.627
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Population Studies/Demography/Statistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,796
1,222
0.437
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Process engineering
process control
university governance and management
research management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,753
1,041
0.378
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Nanotechnology
Green Chemistry
Bioeconomy
Material Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,578
1,549
0.601
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Wetlands
Ecology
Hydroecology
Biogeochemistry
Modelling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,488
1,308
0.526
* Total Citation Counts Rankings
Rankings
21,329
1
1
Ranking Based On Selection: 1
Godfrey Mutashambara Rwegerera
University of Botswana
Gaborone, Botswana
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,530
31,211
0.990
Internal Medicine
Public Health
Diabetes Mellitus
Nephrology
HIV/AIDS
* Total Citation Counts Rankings
Rankings
60,039
3
1
Ranking Based On Selection: 2
Demel Teketay
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,240
6,811
0.447
forestry
vegetation ecology
agriculture
Plant diversity
Regeneration ecology of woody plants
* Total Citation Counts Rankings
Rankings
116,171
6
2
Ranking Based On Selection: 3
Bagele Chilisa
University of Botswana
Gaborone, Botswana
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,824
4,909
0.556
* Total Citation Counts Rankings
Rankings
119,409
7
3
Ranking Based On Selection: 4
Peter Vuylsteke
University of Botswana
Gaborone, Botswana
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,611
5,138
0.597
Cancer
Breast Cancer
gynaecological cancer
affordability of care
* Total Citation Counts Rankings
Rankings
188,494
9
1
Ranking Based On Selection: 5
Edison Muzenda
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,567
3,918
0.704
Green Energy Engineering
Integrated Waste Management
Phase Equilibrium Measurement and Computation
VOCs Scrubbing
* Total Citation Counts Rankings
Rankings
205,701
10
4
Ranking Based On Selection: 6
Girija S Singh
University of Botswana
Gaborone, Botswana
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,092
1,596
0.313
Organic Chemistry
Medicinal Chemistry
Green Chemistry
Chemical Education
* Total Citation Counts Rankings
Rankings
214,949
11
5
Ranking Based On Selection: 7
Musa W Dube
University of Botswana
Gaborone, Botswana
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,865
1,708
0.351
Biblical
postcolonial
translation
gender and HIV&AIDS Studies
* Total Citation Counts Rankings
Rankings
218,053
12
2
Ranking Based On Selection: 8
Sachin Shaw
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,792
3,893
0.812
CFD
Bio-fluid Mechanics
Heat and Mass transfer
Solute Dispersion
Magnetic Drug Targeting
* Total Citation Counts Rankings
Rankings
220,238
13
2
Ranking Based On Selection: 9
Gulelat Desse Haki
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,741
2,371
0.500
Food Science
Enzyme technology
Food product development
* Total Citation Counts Rankings
Rankings
257,353
14
3
Ranking Based On Selection: 10
Ochieng Aoyi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,006
1,758
0.439
wastewater treatment
CFD
photodegradation
adsorption
nanotechnology
* Total Citation Counts Rankings
Rankings
263,298
15
6
Ranking Based On Selection: 11
Julius Mwita
University of Botswana
Gaborone, Botswana
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,902
3,671
0.941
Internal medicine
Cardiovascular diseases
Clinical epidemiology
* Total Citation Counts Rankings
Rankings
281,266
16
4
Ranking Based On Selection: 12
Habtu Zegeye Hailu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,618
915
0.253
Fixed point Theory and Applications
Geometry of Banach spaces
* Total Citation Counts Rankings
Rankings
293,855
17
3
Ranking Based On Selection: 13
Geremew Bultosa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,438
2,264
0.659
Food Chemistry
Grain Science and Technology
Functional Foods
Starches
Food Nutrition
* Total Citation Counts Rankings
Rankings
293,944
18
5
Ranking Based On Selection: 14
Gizaw Mengistu Tsidu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,437
1,631
0.475
Atmospheric remote sensing
climate modelling
space physics
* Total Citation Counts Rankings
Rankings
294,433
19
6
Ranking Based On Selection: 15
Jens ET Andersen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,431
601
0.175
Forensic chemistry
analytical chemistry
quality assurance
electrochemistry
development of pharmaceuticals
* Total Citation Counts Rankings
Rankings
296,229
20
4
Ranking Based On Selection: 16
Ayana Angassa Abdeta
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,406
1,746
0.513
Dryland ecosystem
Environment and Development Studies
Rangeland Ecology
Natural Resource Management
Climate Change
* Total Citation Counts Rankings
Rankings
297,533
21
7
Ranking Based On Selection: 17
Eyitayo Olatunde Olakanmi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,388
2,062
0.609
* Total Citation Counts Rankings
Rankings
311,582
22
8
Ranking Based On Selection: 18
Casper Nyamukondiwa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,206
2,490
0.777
Insect physiological ecology
climate change and pest management
* Total Citation Counts Rankings
Rankings
323,653
23
5
Ranking Based On Selection: 19
Eyassu Seifu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,063
1,756
0.573
Dairy Science and Technology
Food Science
Camels and Camel Products
* Total Citation Counts Rankings
Rankings
329,126
24
7
Ranking Based On Selection: 20
David Norris
University of Botswana
Gaborone, Botswana
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,002
1,674
0.558
Breeding and Genetics
Animal Science
Poultry Science
* Total Citation Counts Rankings
Rankings
345,838
25
9
Ranking Based On Selection: 21
Adamu Murtala Zungeru
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,823
1,771
0.627
Wireless Sensor Networks
Intelligent Systems
Internet of Vehicles
Embedded Systems
Electronics
* Total Citation Counts Rankings
Rankings
348,502
26
8
Ranking Based On Selection: 22
Kannan Navaneetham
University of Botswana
Gaborone, Botswana
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,796
1,222
0.437
* Total Citation Counts Rankings
Rankings
352,988
27
10
Ranking Based On Selection: 23
Paul Serban Agachi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,753
1,041
0.378
Process engineering
process control
university governance and management
research management
* Total Citation Counts Rankings
Rankings
371,696
28
6
Ranking Based On Selection: 24
Force Tefo Thema
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,578
1,549
0.601
Nanotechnology
Green Chemistry
Bioeconomy
Material Physics
* Total Citation Counts Rankings
Rankings
381,971
29
9
Ranking Based On Selection: 25
Michael Murray Hudson
University of Botswana
Gaborone, Botswana
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,488
1,308
0.526
Wetlands
Ecology
Hydroecology
Biogeochemistry
Modelling