Africa Scientist and University Rankings 2025
Africa Natural Sciences 20.286 Scientists Subject Rankings - 2025
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 years. As of Jan 29, 2025, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (873.688) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H IndexRankings
Ranking Based On Selection: 26
Experimental High Energy Nuclear and Particle Physics
Cosmology
Nano-Physics
General Relativity
Computational Physics
Metrics
H-Index
i10 Index
Citation Counts
108
283
44,913
* Total H IndexRankings
Ranking Based On Selection: 27
medicinal chemistry
peptides
Metrics
H-Index
i10 Index
Citation Counts
104
733
55,951
* Total H IndexRankings
Ranking Based On Selection: 28
Chemistry & Environment & Electrochemistry
Metrics
H-Index
i10 Index
Citation Counts
104
636
37,104
* Total H IndexRankings
Ranking Based On Selection: 29
Space weather
ionosphere
cosmic rays
solar physics
particle physics
Metrics
H-Index
i10 Index
Citation Counts
98
176
60,705
* Total H IndexRankings
Ranking Based On Selection: 30
gamma-ray astronomy
Cosmic Rays
Metrics
H-Index
i10 Index
Citation Counts
95
227
47,476
* Total H IndexRankings
Ranking Based On Selection: 31
ethnoecology
fungi ecology
biodiversity conservation
landscape restoration
Metrics
H-Index
i10 Index
Citation Counts
94
454
44,122
* Total H IndexRankings
Ranking Based On Selection: 32
Physics
Astrophysics
Computational Physics
Metrics
H-Index
i10 Index
Citation Counts
94
213
38,940
* Total H IndexRankings
Ranking Based On Selection: 33
Public Health
Global health
Disease modelling
Climate Changes and disease dynamics
Metrics
H-Index
i10 Index
Citation Counts
92
145
123,603
* Total H IndexRankings
Ranking Based On Selection: 34
Natural science/Physics
Metrics
H-Index
i10 Index
Citation Counts
92
177
17,613
* Total H IndexRankings
Ranking Based On Selection: 35
Physics
Metrics
H-Index
i10 Index
Citation Counts
92
261
29,474
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* Total H IndexRankings
Ranking Based On Selection: 36
Structural Egeneering
EM-DRIVE
Nano-Tech Casimir Reactors
Nonlinear Dynamics-Quantum Physics and Cosmology-Dark Energy-Deter
Metrics
H-Index
i10 Index
Citation Counts
90
820
47,472
* Total H IndexRankings
Ranking Based On Selection: 37
Astroparticle Physics
High Energy Astrophysics
Gamma-ray Astronomy
Metrics
H-Index
i10 Index
Citation Counts
89
207
46,176
* Total H IndexRankings
Ranking Based On Selection: 38
Relativity
cosmology
complexity
Metrics
H-Index
i10 Index
Citation Counts
89
304
50,185
* Total H IndexRankings
Ranking Based On Selection: 39
Metrics
H-Index
i10 Index
Citation Counts
87
301
25,088
* Total H IndexRankings
Ranking Based On Selection: 40
Biological science
phytomedicine
botany
Metrics
H-Index
i10 Index
Citation Counts
87
361
26,244
* Total H IndexRankings
Ranking Based On Selection: 41
Astrophysics
Observational Optical/Infrared/Radio Galaxy Evolution
Cloud Computing
Machine Learning
Statistics
Metrics
H-Index
i10 Index
Citation Counts
87
226
33,456
* Total H IndexRankings
Ranking Based On Selection: 42
Applied ecology
fire ecology
invasion ecology
ecosystem management
Metrics
H-Index
i10 Index
Citation Counts
87
212
25,316
* Total H IndexRankings
Ranking Based On Selection: 43
Physics
Nuclear
High Energy Physics
Metrics
H-Index
i10 Index
Citation Counts
87
203
28,225
* Total H IndexRankings
Ranking Based On Selection: 44
Ecology
conservation Biology
Earth system science
Climate change
Metrics
H-Index
i10 Index
Citation Counts
86
197
50,239
* Total H IndexRankings
Ranking Based On Selection: 45
Astrophysics
Cosmology
Astro-Particle Physics
Metrics
H-Index
i10 Index
Citation Counts
85
303
64,170
* Total H IndexRankings
Ranking Based On Selection: 46
Photophysics
Metrics
H-Index
i10 Index
Citation Counts
85
735
36,173
* Total H IndexRankings
Ranking Based On Selection: 47
Nuclear Physics
Metrics
H-Index
i10 Index
Citation Counts
83
220
26,030
* Total H IndexRankings
Ranking Based On Selection: 48
Fluid Mechanics
Thermal Science
Applied Mathematics
Modelling and Computations
BioMathematics
Metrics
H-Index
i10 Index
Citation Counts
82
523
29,031
* Total H IndexRankings
Ranking Based On Selection: 49
Particle Physics
Metrics
H-Index
i10 Index
Citation Counts
81
283
21,347
* Total H IndexRankings
Ranking Based On Selection: 50
Corrosion
Electrochemistry
DFT/MDS
Energy
Environment
Metrics
H-Index
i10 Index
Citation Counts
81
389
21,483
Ahmed M Hamed
Metrics
H-Index
i10-Index
Citation Counts
108
283
44,913
Experimental High Energy Nuclear and Particle Physics
Cosmology
Nano-Physics
General Relativity
Computational Physics
Fernando Albericio
Metrics
H-Index
i10-Index
Citation Counts
104
733
55,951
Belkheir Hammouti
Metrics
H-Index
i10-Index
Citation Counts
104
636
37,104
Chemistry & Environment & Electrochemistry
Ayman Mahrous
Egypt Japan University of Science & Technology
Alexandria, Egypt
Metrics
H-Index
i10-Index
Citation Counts
98
176
60,705
Space weather
ionosphere
cosmic rays
solar physics
particle physics
Nukri Komin
University of the Witwatersrand
Johannesburg, South Africa
Metrics
H-Index
i10-Index
Citation Counts
95
227
47,476
Jianchu Xu
World Agroforestry (ICRAF)
Nairobi, Kenya
Metrics
H-Index
i10-Index
Citation Counts
94
454
44,122
ethnoecology
fungi ecology
biodiversity conservation
landscape restoration
Riaan Steenkamp
University of Namibia
Windhoek, Namibia
Metrics
H-Index
i10-Index
Citation Counts
94
213
38,940
Abdallah Samy
Ain Shams University
Cairo, Egypt
Metrics
H-Index
i10-Index
Citation Counts
92
145
123,603
Public Health
Global health
Disease modelling
Climate Changes and disease dynamics
Waleed E. Mahmoud
Suez Canal University
Ismailia, Egypt
Metrics
H-Index
i10-Index
Citation Counts
92
177
17,613
Roy Maartens
University of the Western Cape
Bellville, South Africa
Metrics
H-Index
i10-Index
Citation Counts
92
261
29,474
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MS El Naschie
Alexandria University
Alexandria, Egypt
Metrics
H-Index
i10-Index
Citation Counts
90
820
47,472
Structural Egeneering
EM-DRIVE
Nano-Tech Casimir Reactors
Nonlinear Dynamics-Quantum Physics and Cosmology-Dark Energy-Deter
Soebur Razzaque
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10-Index
Citation Counts
89
207
46,176
Astroparticle Physics
High Energy Astrophysics
Gamma-ray Astronomy
George FR Ellis
University of Cape Town
Cape Town, South Africa
Metrics
H-Index
i10-Index
Citation Counts
89
304
50,185
Relativity
cosmology
complexity
MR Darwish
Metrics
H-Index
i10-Index
Citation Counts
87
301
25,088
AJ Afolayan
Metrics
H-Index
i10-Index
Citation Counts
87
361
26,244
Biological science
phytomedicine
botany
Mattia Vaccari
University of Cape Town
Cape Town, South Africa
Metrics
H-Index
i10-Index
Citation Counts
87
226
33,456
Astrophysics
Observational Optical/Infrared/Radio Galaxy Evolution
Cloud Computing
Machine Learning
Statistics
Brian W. Van Wilgen
Stellenbosch University
Stellenbosch, South Africa
Metrics
H-Index
i10-Index
Citation Counts
87
212
25,316
Applied ecology
fire ecology
invasion ecology
ecosystem management
Adel Trabelsi
Metrics
H-Index
i10-Index
Citation Counts
87
203
28,225
Guy Midgley
Stellenbosch University
Stellenbosch, South Africa
Metrics
H-Index
i10-Index
Citation Counts
86
197
50,239
Ecology
conservation Biology
Earth system science
Climate change
Sergio Colafrancesco
University of the Witwatersrand
Johannesburg, South Africa
Metrics
H-Index
i10-Index
Citation Counts
85
303
64,170
Astrophysics
Cosmology
Astro-Particle Physics
Tebello Nyokong
Rhodes University
Grahamstown, South Africa
Metrics
H-Index
i10-Index
Citation Counts
85
735
36,173
OD Makinde
Stellenbosch University
Stellenbosch, South Africa
Metrics
H-Index
i10-Index
Citation Counts
82
523
29,031
Fluid Mechanics
Thermal Science
Applied Mathematics
Modelling and Computations
BioMathematics
Tasnuva Chowdhury
University of the Witwatersrand
Johannesburg, South Africa
Metrics
H-Index
i10-Index
Citation Counts
81
283
21,347
Abdelkader Zarrouk
Metrics
H-Index
i10-Index
Citation Counts
81
389
21,483
Corrosion
Electrochemistry
DFT/MDS
Energy
Environment