University, Subject, Country, Region, World
Kenya 8.660 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 31, 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 (870.053) 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: 1
Malaria
Africa
Metrics
H-Index
i10 Index
Citation Counts
140
436
69,974
* Total H IndexRankings
Ranking Based On Selection: 2
agriculture
Metrics
H-Index
i10 Index
Citation Counts
110
309
52,882
* Total H IndexRankings
Ranking Based On Selection: 3
roots
agroforestry
ecosystem services
landscape
water
Metrics
H-Index
i10 Index
Citation Counts
106
559
48,016
* Total H IndexRankings
Ranking Based On Selection: 4
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: 5
Metrics
H-Index
i10 Index
Citation Counts
73
142
16,687
* Total H IndexRankings
Ranking Based On Selection: 6
agroforestry
ecology
biogeography
biodiversity
climate change
Metrics
H-Index
i10 Index
Citation Counts
71
351
90,403
* Total H IndexRankings
Ranking Based On Selection: 7
Chemical Ecology
Insect Behavior
Habitat Management
Metrics
H-Index
i10 Index
Citation Counts
68
210
19,324
* Total H IndexRankings
Ranking Based On Selection: 8
agriculture
agroecology
agroforestry
food security
ecosystem services
Metrics
H-Index
i10 Index
Citation Counts
66
173
14,877
* Total H IndexRankings
Ranking Based On Selection: 9
Applied micro-econometrics
multiple technologica innovaiton bundles adoption and impact assessment
Metrics
H-Index
i10 Index
Citation Counts
63
139
19,129
* Total H IndexRankings
Ranking Based On Selection: 10
child health
paediatrics
Metrics
H-Index
i10 Index
Citation Counts
56
130
9,741
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* Total H IndexRankings
Ranking Based On Selection: 11
Extension
marketing
agroforestry
natural resources management
participatory research
Metrics
H-Index
i10 Index
Citation Counts
55
150
10,452
* Total H IndexRankings
Ranking Based On Selection: 12
Global Mental Health
Health Services Research
Health Disparities
Child & Adolescent MH
Metrics
H-Index
i10 Index
Citation Counts
52
139
63,350
* Total H IndexRankings
Ranking Based On Selection: 13
Agroforestry
Restoration
Tree Conservation. Integrated Tree Seed Systems
Food Trees
Metrics
H-Index
i10 Index
Citation Counts
52
147
10,935
* Total H IndexRankings
Ranking Based On Selection: 14
Tropical medicine
HIV/AIDS
research ethics
clinical ethics
Metrics
H-Index
i10 Index
Citation Counts
52
161
13,680
* Total H IndexRankings
Ranking Based On Selection: 15
Agroforestry
Biofuel
Rice
agronomy
Metrics
H-Index
i10 Index
Citation Counts
51
339
17,556
* Total H IndexRankings
Ranking Based On Selection: 16
Paediatrics
HIV
Epidemiology
Child Health
Metrics
H-Index
i10 Index
Citation Counts
51
124
11,013
* Total H IndexRankings
Ranking Based On Selection: 17
Primary Health Care
Metrics
H-Index
i10 Index
Citation Counts
51
92
13,160
* Total H IndexRankings
Ranking Based On Selection: 18
livestock nutrition
smallholder
agriculture
Africa
Asia
Metrics
H-Index
i10 Index
Citation Counts
50
114
7,978
* Total H IndexRankings
Ranking Based On Selection: 19
Landscape ecology
Conservation biology
Biodiversity
Tropical forest ecology
Restoration
Metrics
H-Index
i10 Index
Citation Counts
49
117
10,103
* Total H IndexRankings
Ranking Based On Selection: 20
Infectious Diseases
Parasitic Infections
Metrics
H-Index
i10 Index
Citation Counts
49
87
6,659
* Total H IndexRankings
Ranking Based On Selection: 21
SLU
Metrics
H-Index
i10 Index
Citation Counts
48
107
7,543
* Total H IndexRankings
Ranking Based On Selection: 22
Health Economics
Public Health
Health Systems
Health Research Systems
Metrics
H-Index
i10 Index
Citation Counts
48
107
7,214
* Total H IndexRankings
Ranking Based On Selection: 23
Infectious Diseases
Clinical Epidemiology
Medical Education
Metrics
H-Index
i10 Index
Citation Counts
48
76
8,444
* Total H IndexRankings
Ranking Based On Selection: 24
Entomology
Integrated Pest management
Insects for food and feed
Metrics
H-Index
i10 Index
Citation Counts
47
143
7,508
* Total H IndexRankings
Ranking Based On Selection: 25
Health Economics
Development Economics
Microeconometrics and Poverty Analysis
Metrics
H-Index
i10 Index
Citation Counts
46
107
7,659
Robert W Snow
Kenya Medical Research Institute
Nairobi, Kenya
Metrics
H-Index
i10-Index
Citation Counts
140
436
69,974
Philip Thornton
International Livestock Research Institute (ILRI)
Addis Ababa, Kenya
Metrics
H-Index
i10-Index
Citation Counts
110
309
52,882
Meine Van Noordwijk|Noordwijk, Meine van, van Noordwijk, Meine
World Agroforestry (ICRAF)
Nairobi, Kenya
Metrics
H-Index
i10-Index
Citation Counts
106
559
48,016
roots
agroforestry
ecosystem services
landscape
water
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
Mark Van Wijk
International Livestock Research Institute (ILRI)
Addis Ababa, Kenya
Metrics
H-Index
i10-Index
Citation Counts
73
142
16,687
Kindt, Roeland
World Agroforestry (ICRAF)
Nairobi, Kenya
Metrics
H-Index
i10-Index
Citation Counts
71
351
90,403
agroforestry
ecology
biogeography
biodiversity
climate change
Zeyaur R Khan
Metrics
H-Index
i10-Index
Citation Counts
68
210
19,324
Chemical Ecology
Insect Behavior
Habitat Management
Fergus Sinclair
World Agroforestry (ICRAF)
Nairobi, Kenya
Metrics
H-Index
i10-Index
Citation Counts
66
173
14,877
agriculture
agroecology
agroforestry
food security
ecosystem services
Menale Kassie
Metrics
H-Index
i10-Index
Citation Counts
63
139
19,129
Applied micro-econometrics
multiple technologica innovaiton bundles adoption and impact assessment
child health
paediatrics
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Steven Franzel
World Agroforestry (ICRAF)
Nairobi, Kenya
Metrics
H-Index
i10-Index
Citation Counts
55
150
10,452
Extension
marketing
agroforestry
natural resources management
participatory research
Manasi Kumar
University of Nairobi
Nairobi, Kenya
Metrics
H-Index
i10-Index
Citation Counts
52
139
63,350
Global Mental Health
Health Services Research
Health Disparities
Child & Adolescent MH
Ramni H Jamnadass
World Agroforestry (ICRAF)
Nairobi, Kenya
Metrics
H-Index
i10-Index
Citation Counts
52
147
10,935
Agroforestry
Restoration
Tree Conservation. Integrated Tree Seed Systems
Food Trees
Walter Jaoko
University of Nairobi
Nairobi, Kenya
Metrics
H-Index
i10-Index
Citation Counts
52
161
13,680
Tropical medicine
HIV/AIDS
research ethics
clinical ethics
Virendra Pal Singh
World Agroforestry (ICRAF)
Nairobi, Kenya
Metrics
H-Index
i10-Index
Citation Counts
51
339
17,556
Agroforestry
Biofuel
Rice
agronomy
Ruth Nduati
University of Nairobi
Nairobi, Kenya
Metrics
H-Index
i10-Index
Citation Counts
51
124
11,013
Paediatrics
HIV
Epidemiology
Child Health
Elizabeth Ngugi
University of Nairobi
Nairobi, Kenya
Metrics
H-Index
i10-Index
Citation Counts
51
92
13,160
Alan Duncan
International Livestock Research Institute (ILRI)
Addis Ababa, Kenya
Metrics
H-Index
i10-Index
Citation Counts
50
114
7,978
livestock nutrition
smallholder
agriculture
Africa
Asia
Rhett D Harrison
World Agroforestry (ICRAF)
Nairobi, Kenya
Metrics
H-Index
i10-Index
Citation Counts
49
117
10,103
Landscape ecology
Conservation biology
Biodiversity
Tropical forest ecology
Restoration
Eric M. Muchiri
Metrics
H-Index
i10-Index
Citation Counts
49
87
6,659
Infectious Diseases
Parasitic Infections
Ingrid Oborn
World Agroforestry (ICRAF)
Nairobi, Kenya
Metrics
H-Index
i10-Index
Citation Counts
48
107
7,543
Joses Muthuri Kirigia
Metrics
H-Index
i10-Index
Citation Counts
48
107
7,214
Health Economics
Public Health
Health Systems
Health Research Systems
James Agrrey Oloo
Metrics
H-Index
i10-Index
Citation Counts
48
76
8,444
Infectious Diseases
Clinical Epidemiology
Medical Education
Sevgan Subramanian
Metrics
H-Index
i10-Index
Citation Counts
47
143
7,508
Entomology
Integrated Pest management
Insects for food and feed
Mwabu, G
University of Nairobi
Nairobi, Kenya
Metrics
H-Index
i10-Index
Citation Counts
46
107
7,659
Health Economics
Development Economics
Microeconometrics and Poverty Analysis