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
Conservation Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,107
1,865
0.885
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Fish Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,968
1,196
0.608
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Nuclear Science and Technology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,285
605
0.471
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Forestry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,086
912
0.840
* Total Citation Counts Rankings
Ranking Based On Selection: 5
molecular characterisation of crops
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,067
875
0.820
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Agricultural Entomology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
875
364
0.416
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Fish/Food processing and quality assurance
Food processing & nutrient conservation
Food and culture
Food and nutrition securi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
607
360
0.593
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Agriculture
Forestry and Environment
Soil - land use interactions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
447
257
0.575
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Waste beneficiation
CO2 adsorption
Brine mineralization
Fabrication of CO2 sorbents from waste
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
420
262
0.624
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Crop Protection
Crop Production
Root & Tuber Crops
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
385
247
0.642
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Organic Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
326
307
0.942
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Employee empowerment
socila capital
organizational citizenship
Green Human Resource management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
285
226
0.793
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Human Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
268
108
0.403
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Biodiversity
Conservation
Spatial Ecology
Climate Change
Environmental Planning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
239
215
0.900
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Curriculum Theory
Trends in Teacher Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
229
205
0.895
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Waste modification and beneficiation
Carbon mineralization
CO2 sequestration
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
216
170
0.787
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Human Resource Management
Gender issues
Quality of Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
215
135
0.628
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Education Communication Technology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
207
191
0.923
* Total Citation Counts Rankings
Ranking Based On Selection: 19
history
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
202
111
0.550
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Educational Foundations
Policy studies
Higher Education Studies
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
199
181
0.910
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Cognitive Linguistics
multilingual education
phonology
sociolinguistics and syntax
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
194
137
0.706
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Conservation Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
194
37
0.191
* Total Citation Counts Rankings
Ranking Based On Selection: 23
gut microbiome
diabetes
food systems
legumes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
185
177
0.957
* Total Citation Counts Rankings
Ranking Based On Selection: 24
strategic management
Research
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
178
150
0.843
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Entrepreneurship
human resource development and strategic management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
175
135
0.771
* Total Citation Counts Rankings
Rankings
424,258
266
1
Ranking Based On Selection: 1
Duncan Kimuyu
Karatina University
Karatina, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,107
1,865
0.885
* Total Citation Counts Rankings
Rankings
445,775
285
2
Ranking Based On Selection: 2
Charles Ngugi
Karatina University
Karatina, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,968
1,196
0.608
* Total Citation Counts Rankings
Rankings
589,066
501
3
Ranking Based On Selection: 3
Jeremiah Kebwaro
Karatina University
Karatina, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,285
605
0.471
Nuclear Science and Technology
* Total Citation Counts Rankings
Rankings
648,689
614
4
Ranking Based On Selection: 4
Mwangi James Kinyanjui
Karatina University
Karatina, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,086
912
0.840
* Total Citation Counts Rankings
Rankings
655,036
624
5
Ranking Based On Selection: 5
Moses Muriithi mathenge
Karatina University
Karatina, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,067
875
0.820
molecular characterisation of crops
* Total Citation Counts Rankings
Rankings
726,601
759
6
Ranking Based On Selection: 6
Linus Gitonga
Karatina University
Karatina, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
875
364
0.416
Agricultural Entomology
* Total Citation Counts Rankings
Rankings
852,085
1,023
7
Ranking Based On Selection: 7
Michael Ni Lokuruka
Karatina University
Karatina, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
607
360
0.593
Fish/Food processing and quality assurance
Food processing & nutrient conservation
Food and culture
Food and nutrition securi
* Total Citation Counts Rankings
Rankings
963,803
1,225
8
Ranking Based On Selection: 8
Hellen Wangechi Kamiri
Karatina University
Karatina, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
447
257
0.575
Agriculture
Forestry and Environment
Soil - land use interactions
* Total Citation Counts Rankings
Rankings
988,919
1,277
9
Ranking Based On Selection: 9
Grace Nyambura Muriithi
Karatina University
Karatina, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
420
262
0.624
Waste beneficiation
CO2 adsorption
Brine mineralization
Fabrication of CO2 sorbents from waste
* Total Citation Counts Rankings
Rankings
1,024,076
1,331
10
Ranking Based On Selection: 10
Agnes W. Kihurani
Karatina University
Karatina, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
385
247
0.642
Crop Protection
Crop Production
Root & Tuber Crops
* Total Citation Counts Rankings
Rankings
1,090,085
1,443
11
Ranking Based On Selection: 11
David Sujee Makhanu
Karatina University
Karatina, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
326
307
0.942
* Total Citation Counts Rankings
Rankings
1,145,699
1,594
12
Ranking Based On Selection: 12
Anne Kariuki
Karatina University
Karatina, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
285
226
0.793
Employee empowerment
socila capital
organizational citizenship
Green Human Resource management
* Total Citation Counts Rankings
Rankings
1,172,333
1,693
13
Ranking Based On Selection: 13
Ezekiel Mbitha Mwenzwa
Karatina University
Karatina, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
268
108
0.403
* Total Citation Counts Rankings
Rankings
1,219,471
1,868
14
Ranking Based On Selection: 14
Geoffrey Wambugu
Karatina University
Karatina, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
239
215
0.900
Biodiversity
Conservation
Spatial Ecology
Climate Change
Environmental Planning
* Total Citation Counts Rankings
Rankings
1,237,515
1,931
15
Ranking Based On Selection: 15
Josphat Kagema
Karatina University
Karatina, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
229
205
0.895
Curriculum Theory
Trends in Teacher Education
* Total Citation Counts Rankings
Rankings
1,262,668
2,034
16
Ranking Based On Selection: 16
Grace Muriithi
Karatina University
Karatina, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
216
170
0.787
Waste modification and beneficiation
Carbon mineralization
CO2 sequestration
* Total Citation Counts Rankings
Rankings
1,264,998
2,046
17
Ranking Based On Selection: 17
Tabitha Wangare Wambui
Karatina University
Karatina, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
215
135
0.628
Human Resource Management
Gender issues
Quality of Education
* Total Citation Counts Rankings
Rankings
1,280,170
2,104
18
Ranking Based On Selection: 18
David G. Mugo
Karatina University
Karatina, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
207
191
0.923
* Total Citation Counts Rankings
Rankings
1,291,615
2,155
19
Ranking Based On Selection: 19
John Mwaruvie
Karatina University
Karatina, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
202
111
0.550
* Total Citation Counts Rankings
Rankings
1,297,134
2,176
20
Ranking Based On Selection: 20
Jared Ochwangi Motanya
Karatina University
Karatina, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
199
181
0.910
Educational Foundations
Policy studies
Higher Education Studies
* Total Citation Counts Rankings
Rankings
1,308,459
2,226
21
Ranking Based On Selection: 21
Moses Gatambuki
Karatina University
Karatina, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
194
137
0.706
Cognitive Linguistics
multilingual education
phonology
sociolinguistics and syntax
* Total Citation Counts Rankings
Rankings
1,309,141
2,228
22
Ranking Based On Selection: 22
Julius Chege Karugu
Karatina University
Karatina, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
194
37
0.191
* Total Citation Counts Rankings
Rankings
1,327,883
2,293
23
Ranking Based On Selection: 23
Sheila Kilonzi
Karatina University
Karatina, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
185
177
0.957
* Total Citation Counts Rankings
Rankings
1,344,867
2,353
24
Ranking Based On Selection: 24
Beatrice Ombaka
Karatina University
Karatina, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
178
150
0.843
* Total Citation Counts Rankings
Rankings
1,352,285
2,382
25
Ranking Based On Selection: 25
Teresia Kyalo
Karatina University
Karatina, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
175
135
0.771
Entrepreneurship
human resource development and strategic management