Citation Rankings (Highly Cited Researchers) 2024 and list of influential and most cited researchers in Agriculture and Forestry, Architecture and Design, Business and Management, Economics and Econometrics, Education, Engineering and Technology, History, Philosophy, Theology, Law, Medicine and Health Sciences, Natural Sciences and Social Sciences and their 256 sub-branches is a unique service offered only by “AD Scientific Index”. You can see the most cited and influential researchers in the country and region. See also for more specific citation analyses: "last 6 years citation index" Universities Rankings 2024 (Sort by: Total Citations) and Universities Rankings 2024 (Sort by : Last 6 Years Citations)
* Last 6 Years Citation Counts Rankings
![Marietta Charakida](/user/assets/images/profile/no-profile-photo.png)
obesity
cardiology
congenital
pregnancy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,057
3,360
0.476
* Last 6 Years Citation Counts Rankings
![Andrew W Beck](https://cdn.adscientificindex.com/pictures/3b/1392965.jpg)
geology
petrology
planetary science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,066
751
0.364
* Last 6 Years Citation Counts Rankings
![Gama Perruci](https://cdn.adscientificindex.com/pictures/70/4326946.jpg)
Global Leadership
Leadership Education
International Politics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
237
157
0.662
* Last 6 Years Citation Counts Rankings
![Juan Carlos Ramirez Dorronsoro](https://cdn.adscientificindex.com/pictures/db/1392964.jpg)
Environmental engineering
Air pollution
Indoor air pollution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
400
149
0.373
* Last 6 Years Citation Counts Rankings
![Ahmed Mohamed (Algarhy)](https://cdn.adscientificindex.com/pictures/bd/4326919.jpg)
Hydraulic Fracturing
Geomechanics
and Organic Shale Evaluation and Development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
97
78
0.804
* Last 6 Years Citation Counts Rankings
![Todd A Comer](https://cdn.adscientificindex.com/pictures/df/4326997.jpg)
comics
film
disability
ecology
composition
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
109
56
0.514
* Last 6 Years Citation Counts Rankings
![Charles Doan](/user/assets/images/profile/no-profile-photo.png)
Categorization
Learning
Reasoning
Sensation
Perception
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59
42
0.712
* Last 6 Years Citation Counts Rankings
![Michael Williams Sr](/user/assets/images/profile/no-profile-photo.png)
Counselor Education
Clinical Mental Health Counseling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41
26
0.634
* Last 6 Years Citation Counts Rankings
![Cody M Clemens](https://cdn.adscientificindex.com/pictures/72/4717761.jpg)
health communication
organizational communication
gender
qualitative research methods
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21
18
0.857
* Last 6 Years Citation Counts Rankings
![Greg Delemeester](/user/assets/images/profile/no-profile-photo.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
123
16
0.130
* Last 6 Years Citation Counts Rankings
![David Cress](/user/assets/images/profile/no-profile-photo.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16
1
0.063
Marietta Charakida
King's College London
London, United Kingdom
![United Kingdom](/flags/gb.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,057
3,360
0.476
obesity
cardiology
congenital
pregnancy
Andrew W Beck
Marietta College
Marietta, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,066
751
0.364
geology
petrology
planetary science
Gama Perruci
Marietta College
Marietta, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
237
157
0.662
Global Leadership
Leadership Education
International Politics
Juan Carlos Ramirez Dorronsoro
Marietta College
Marietta, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
400
149
0.373
Environmental engineering
Air pollution
Indoor air pollution
Ahmed Mohamed (Algarhy)
Marietta College
Marietta, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
97
78
0.804
Hydraulic Fracturing
Geomechanics
and Organic Shale Evaluation and Development
Todd A Comer
Marietta College
Marietta, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
109
56
0.514
comics
film
disability
ecology
composition
Charles Doan
Marietta College
Marietta, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59
42
0.712
Michael Williams Sr
Marietta College
Marietta, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41
26
0.634
Cody M Clemens
Marietta College
Marietta, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21
18
0.857
health communication
organizational communication
gender
qualitative research methods
Greg Delemeester
Marietta College
Marietta, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
123
16
0.130
David Cress
Marietta College
Marietta, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16
1
0.063