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)
![Alan G Marshall](https://cdn.adscientificindex.com/pictures/d7/1322288.jpg)
Analytical Chemistry
Mass Spectrometry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,308
14,476
0.236
* Last 6 Years Citation Counts Rankings
![Paul Marshall](https://cdn.adscientificindex.com/pictures/09/1510154.jpg)
chemistry
engineering
physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,877
2,283
0.388
* Last 6 Years Citation Counts Rankings
![Aaron Marshall](https://cdn.adscientificindex.com/pictures/90/117530.jpg)
Electrocatalysis
redox batteries
hydrogen
fuel cells
electrochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,818
1,798
0.471
* Last 6 Years Citation Counts Rankings
![Jack A Smith](https://cdn.adscientificindex.com/pictures/5c/4457863.jpg)
Computational Quantum Chemistry
Computational Science
High-Performance Computing
Virtual Collaboration Environments
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,711
1,130
0.305
* Last 6 Years Citation Counts Rankings
![David Marshall](https://cdn.adscientificindex.com/pictures/4d/120975.jpg)
Mass spectrometry
ion chemistry
reactive intermediates
lipidomics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,193
1,003
0.841
* Last 6 Years Citation Counts Rankings
![Masudur Rahman](https://cdn.adscientificindex.com/pictures/72/1386908.jpg)
Bionanotechnology
Nanoscale chemistry
Nanotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,802
928
0.515
* Last 6 Years Citation Counts Rankings
![Brandon J Henderson](https://cdn.adscientificindex.com/pictures/3c/1392833.jpg)
Chemical Biology
Medicinal Chemistry
Neurochemistry
Neurobiology
Pharmacology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,174
781
0.665
* Last 6 Years Citation Counts Rankings
![John G Marshall](https://cdn.adscientificindex.com/pictures/c3/649517.jpg)
Analytical Biochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,070
776
0.253
* Last 6 Years Citation Counts Rankings
![Rosalynn Quiñones](https://cdn.adscientificindex.com/pictures/0a/1392867.jpg)
chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
905
440
0.486
* Last 6 Years Citation Counts Rankings
![Marshall Brennan](https://cdn.adscientificindex.com/pictures/15/1403837.jpg)
Devices
Robotics
Flexible electronics
Organometallic Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
664
419
0.631
* Last 6 Years Citation Counts Rankings
![Derrick Kolling](https://cdn.adscientificindex.com/pictures/e1/1424392.jpg)
biochemistry
photosynthesis
biofuels
tardigrades
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,622
395
0.244
* Last 6 Years Citation Counts Rankings
![Jessica Marshall](https://cdn.adscientificindex.com/pictures/b3/1606750.jpg)
Crystallography
functional materials
ferroelectrics
cemented carbides
nuclear power
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
620
372
0.600
* Last 6 Years Citation Counts Rankings
![Nicholas Marshall](https://cdn.adscientificindex.com/pictures/18/1622329.jpg)
Surface chemistry
organic chemistry
polymer chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
403
113
0.280
* Last 6 Years Citation Counts Rankings
![R Marshall Werner](/user/assets/images/profile/no-profile-photo.png)
Organic Chemistry
Biochemistry
Enzymology
Synthetic Biology
thiamine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
477
77
0.161
* Last 6 Years Citation Counts Rankings
![Delmar Marshall](/user/assets/images/profile/no-profile-photo.png)
Nonlinear Dynamics
Chemical Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
77
33
0.429
* Last 6 Years Citation Counts Rankings
![Wisam Talib Joudah](https://cdn.adscientificindex.com/pictures/93/5719339.jpg)
Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
* Last 6 Years Citation Counts Rankings
![Marwan Talib Joudah](https://cdn.adscientificindex.com/pictures/2e/5247098.jpg)
Organic Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
Alan G Marshall
Florida State University
Tallahassee, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,308
14,476
0.236
Analytical Chemistry
Mass Spectrometry
Paul Marshall
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,877
2,283
0.388
Aaron Marshall
University of Canterbury
Christchurch, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,818
1,798
0.471
Electrocatalysis
redox batteries
hydrogen
fuel cells
electrochemistry
Jack A Smith
Marshall University
Huntington, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,711
1,130
0.305
Computational Quantum Chemistry
Computational Science
High-Performance Computing
Virtual Collaboration Environments
David Marshall
Queensland University of Technology
Brisbane, Australia
![Australia](/flags/au.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,193
1,003
0.841
Mass spectrometry
ion chemistry
reactive intermediates
lipidomics
Masudur Rahman
Marshall University
Huntington, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,802
928
0.515
Bionanotechnology
Nanoscale chemistry
Nanotechnology
Brandon J Henderson
Marshall University
Huntington, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,174
781
0.665
Chemical Biology
Medicinal Chemistry
Neurochemistry
Neurobiology
Pharmacology
John G Marshall
Toronto Metropolitan University
Toronto, Canada
![Canada](/flags/ca.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,070
776
0.253
Rosalynn Quiñones
Marshall University
Huntington, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
905
440
0.486
Marshall Brennan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
664
419
0.631
Devices
Robotics
Flexible electronics
Organometallic Chemistry
Derrick Kolling
Marshall University
Huntington, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,622
395
0.244
biochemistry
photosynthesis
biofuels
tardigrades
Jessica Marshall
University of Warwick
Coventry, United Kingdom
![United Kingdom](/flags/gb.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
620
372
0.600
Crystallography
functional materials
ferroelectrics
cemented carbides
nuclear power
Nicholas Marshall
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
403
113
0.280
Surface chemistry
organic chemistry
polymer chemistry
R Marshall Werner
Lake Superior State University
Sault Ste. Marie, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
477
77
0.161
Organic Chemistry
Biochemistry
Enzymology
Synthetic Biology
thiamine
Delmar Marshall
Amrita University
Coimbatore, India
![India](/flags/in.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
77
33
0.429
Wisam Talib Joudah
Marshall University
Huntington, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
Marwan Talib Joudah
Marshall University
Huntington, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000