Citation Rankings (Highly Cited Researchers) 2024 and list of influential and most cited researchers in Agriculture and Forestry, Art, Design and Architecture, 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)
* Total Citation Counts Rankings
World Rank
112,713
Country Rank
5,012
Institution Rank : 98
![](https://cdn.adscientificindex.com/logos/11346.jpg)
![Canada](/flags/ca.png)
![Walter L Siqueira](https://cdn.adscientificindex.com/pictures/22/644877.jpg)
dentistry
saliva
salivary proteins
enamel pellicle
proteome
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,671
5,741
0.662
* Total Citation Counts Rankings
World Rank
114,499
Country Rank
5,071
Institution Rank : 102
![](https://cdn.adscientificindex.com/logos/11346.jpg)
![Canada](/flags/ca.png)
![Todd G Morrison](/user/assets/images/profile/no-profile-photo.png)
gay and lesbian issues
body image
psychometrics
prejudice
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,556
3,686
0.431
* Total Citation Counts Rankings
World Rank
115,509
Country Rank
5,124
Institution Rank : 103
![](https://cdn.adscientificindex.com/logos/11346.jpg)
![Canada](/flags/ca.png)
![Debra Morgan](https://cdn.adscientificindex.com/pictures/38/644124.jpg)
rural health service delivery
dementia
primary health care
community-based participatory research
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,490
3,542
0.417
* Total Citation Counts Rankings
World Rank
119,558
Country Rank
5,296
Institution Rank : 104
![](https://cdn.adscientificindex.com/logos/11346.jpg)
![Canada](/flags/ca.png)
![Gordon A Zello](https://cdn.adscientificindex.com/pictures/f8/644312.jpg)
Nutrition
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,233
3,597
0.437
* Total Citation Counts Rankings
World Rank
121,276
Country Rank
5,355
Institution Rank : 108
![](https://cdn.adscientificindex.com/logos/11346.jpg)
![Canada](/flags/ca.png)
![J Sylvan Katz](https://cdn.adscientificindex.com/pictures/72/650331.jpg)
Complex Innovation Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,127
2,230
0.274
* Total Citation Counts Rankings
World Rank
120,213
Country Rank
5,321
Institution Rank : 105
![](https://cdn.adscientificindex.com/logos/11346.jpg)
![Canada](/flags/ca.png)
![Valerie A Thompson](/user/assets/images/profile/no-profile-photo.png)
cognitive psychology
reasoning
metacognition
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,190
4,280
0.523
* Total Citation Counts Rankings
World Rank
120,944
Country Rank
5,344
Institution Rank : 107
![](https://cdn.adscientificindex.com/logos/11346.jpg)
![Canada](/flags/ca.png)
![Cheryl L Waldner](https://cdn.adscientificindex.com/pictures/3f/645087.jpg)
Beef Cattle Health
Epidemiology
Infectious disease
Environmental health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,146
3,792
0.466
* Total Citation Counts Rankings
World Rank
122,437
Country Rank
5,398
Institution Rank : 109
![](https://cdn.adscientificindex.com/logos/11346.jpg)
![Canada](/flags/ca.png)
![Peter Bretscher](https://cdn.adscientificindex.com/pictures/d2/646644.jpg)
Immunology
Tuberculosis
AIDS
Vaccines
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,055
1,286
0.160
* Total Citation Counts Rankings
World Rank
120,397
Country Rank
5,327
Institution Rank : 106
![](https://cdn.adscientificindex.com/logos/11346.jpg)
![Canada](/flags/ca.png)
![Ambuj Bhushan Jha](/user/assets/images/profile/no-profile-photo.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,179
5,530
0.676
* Total Citation Counts Rankings
World Rank
124,684
Country Rank
5,501
Institution Rank : 110
![](https://cdn.adscientificindex.com/logos/11346.jpg)
![Canada](/flags/ca.png)
![Jeremy Lee](/user/assets/images/profile/no-profile-photo.png)
Neurodegenerative diseases
protein misfolding
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,923
1,006
0.127
* Total Citation Counts Rankings
World Rank
125,438
Country Rank
5,537
Institution Rank : 111
![](https://cdn.adscientificindex.com/logos/11346.jpg)
![Canada](/flags/ca.png)
![Kevin Spink](/user/assets/images/profile/no-profile-photo.png)
Social influences and physical activity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,880
2,191
0.278
* Total Citation Counts Rankings
World Rank
129,751
Country Rank
5,709
Institution Rank : 112
![](https://cdn.adscientificindex.com/logos/11346.jpg)
![Canada](/flags/ca.png)
![Lawrence W Martz](/user/assets/images/profile/no-profile-photo.png)
hydrology
geography
climate change
GIS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,645
1,717
0.225
* Total Citation Counts Rankings
World Rank
130,982
Country Rank
5,761
Institution Rank : 113
![](https://cdn.adscientificindex.com/logos/11346.jpg)
![Canada](/flags/ca.png)
![Alain Pietroniro](/user/assets/images/profile/no-profile-photo.png)
Hydrology and Water Resources Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,581
2,610
0.344
* Total Citation Counts Rankings
World Rank
132,094
Country Rank
5,800
Institution Rank : 116
![](https://cdn.adscientificindex.com/logos/11346.jpg)
![Canada](/flags/ca.png)
![Wolfgang Walz](https://cdn.adscientificindex.com/pictures/ec/643500.jpg)
Neurobiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,521
922
0.123
* Total Citation Counts Rankings
World Rank
131,037
Country Rank
5,766
Institution Rank : 114
![](https://cdn.adscientificindex.com/logos/11346.jpg)
![Canada](/flags/ca.png)
![Andrei Smolyakov](/user/assets/images/profile/no-profile-photo.png)
plasma physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,578
2,719
0.359
* Total Citation Counts Rankings
World Rank
131,504
Country Rank
5,778
Institution Rank : 115
![](https://cdn.adscientificindex.com/logos/11346.jpg)
![Canada](/flags/ca.png)
![Volker Gerdts](/user/assets/images/profile/no-profile-photo.png)
Vaccines
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,554
3,765
0.498
* Total Citation Counts Rankings
World Rank
134,882
Country Rank
5,923
Institution Rank : 117
![](https://cdn.adscientificindex.com/logos/11346.jpg)
![Canada](/flags/ca.png)
![William P Patterson](https://cdn.adscientificindex.com/pictures/a5/643805.jpg)
Climate
isotope chemistry
geochemistry
hydrology
biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,372
2,550
0.346
* Total Citation Counts Rankings
World Rank
135,831
Country Rank
5,964
Institution Rank : 118
![](https://cdn.adscientificindex.com/logos/11346.jpg)
![Canada](/flags/ca.png)
![Bunyamin Tar An](https://cdn.adscientificindex.com/pictures/e5/647269.jpg)
Plant Breeding and Genetics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,324
4,372
0.597
* Total Citation Counts Rankings
World Rank
136,381
Country Rank
5,992
Institution Rank : 119
![](https://cdn.adscientificindex.com/logos/11346.jpg)
![Canada](/flags/ca.png)
![William Kerr](/user/assets/images/profile/no-profile-photo.png)
International Trade Policy
Agricultural Trade
Food and Agricultural Policy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,298
1,841
0.252
* Total Citation Counts Rankings
World Rank
138,044
Country Rank
6,056
Institution Rank : 120
![](https://cdn.adscientificindex.com/logos/11346.jpg)
![Canada](/flags/ca.png)
![Randy W Purves](https://cdn.adscientificindex.com/pictures/3b/643355.jpg)
FAIMS
LC-MS
metabolomics
pulse crops
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,216
1,929
0.267
* Total Citation Counts Rankings
World Rank
138,344
Country Rank
6,067
Institution Rank : 121
![](https://cdn.adscientificindex.com/logos/11346.jpg)
![Canada](/flags/ca.png)
![Roland F Dyck](/user/assets/images/profile/no-profile-photo.png)
diabetes
kidney disease
Indigenous Peoples
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,202
1,658
0.230
* Total Citation Counts Rankings
World Rank
139,599
Country Rank
6,108
Institution Rank : 123
![](https://cdn.adscientificindex.com/logos/11346.jpg)
![Canada](/flags/ca.png)
![Grzegorz Sawicki](https://cdn.adscientificindex.com/pictures/21/645550.jpg)
oxidative stress
pharmacology
proteomics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,140
1,646
0.231
* Total Citation Counts Rankings
World Rank
143,314
Country Rank
6,263
Institution Rank : 125
![](https://cdn.adscientificindex.com/logos/11346.jpg)
![Canada](/flags/ca.png)
![Timothy D Jardine](https://cdn.adscientificindex.com/pictures/4f/646646.jpg)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,968
3,884
0.557
* Total Citation Counts Rankings
World Rank
143,299
Country Rank
6,261
Institution Rank : 124
![](https://cdn.adscientificindex.com/logos/11346.jpg)
![Canada](/flags/ca.png)
![Alan Rosenberg](/user/assets/images/profile/no-profile-photo.png)
Pediatric Rheumatology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,969
2,543
0.365
* Total Citation Counts Rankings
World Rank
145,436
Country Rank
6,354
Institution Rank : 127
![](https://cdn.adscientificindex.com/logos/11346.jpg)
![Canada](/flags/ca.png)
![Barbara J Phillips](https://cdn.adscientificindex.com/pictures/8e/649260.jpg)
Advertising images
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,869
3,132
0.456
* Total Citation Counts Rankings
World Ranking
112,713
Country Ranking
5,012
Institution Ranking
98
Walter L Siqueira
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,671
5,741
0.662
![](https://cdn.adscientificindex.com/logos/11346.jpg)
dentistry
saliva
salivary proteins
enamel pellicle
proteome
* Total Citation Counts Rankings
World Ranking
114,499
Country Ranking
5,071
Institution Ranking
102
Todd G Morrison
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,556
3,686
0.431
![](https://cdn.adscientificindex.com/logos/11346.jpg)
gay and lesbian issues
body image
psychometrics
prejudice
* Total Citation Counts Rankings
World Ranking
115,509
Country Ranking
5,124
Institution Ranking
103
Debra Morgan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,490
3,542
0.417
![](https://cdn.adscientificindex.com/logos/11346.jpg)
rural health service delivery
dementia
primary health care
community-based participatory research
* Total Citation Counts Rankings
World Ranking
119,558
Country Ranking
5,296
Institution Ranking
104
Gordon A Zello
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,233
3,597
0.437
* Total Citation Counts Rankings
World Ranking
121,276
Country Ranking
5,355
Institution Ranking
108
J Sylvan Katz
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,127
2,230
0.274
* Total Citation Counts Rankings
World Ranking
120,213
Country Ranking
5,321
Institution Ranking
105
Valerie A Thompson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,190
4,280
0.523
![](https://cdn.adscientificindex.com/logos/11346.jpg)
cognitive psychology
reasoning
metacognition
* Total Citation Counts Rankings
World Ranking
120,944
Country Ranking
5,344
Institution Ranking
107
Cheryl L Waldner
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,146
3,792
0.466
![](https://cdn.adscientificindex.com/logos/11346.jpg)
Beef Cattle Health
Epidemiology
Infectious disease
Environmental health
* Total Citation Counts Rankings
World Ranking
122,437
Country Ranking
5,398
Institution Ranking
109
Peter Bretscher
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,055
1,286
0.160
![](https://cdn.adscientificindex.com/logos/11346.jpg)
Immunology
Tuberculosis
AIDS
Vaccines
* Total Citation Counts Rankings
World Ranking
120,397
Country Ranking
5,327
Institution Ranking
106
Ambuj Bhushan Jha
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,179
5,530
0.676
* Total Citation Counts Rankings
World Ranking
124,684
Country Ranking
5,501
Institution Ranking
110
Jeremy Lee
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,923
1,006
0.127
![](https://cdn.adscientificindex.com/logos/11346.jpg)
Neurodegenerative diseases
protein misfolding
![Adscientificindex](/assets/images/banner_logo.png)
Click for INSTITUTIONAL BULK REGISTRATION and PREMIUM MEMBERSHIP advantages
![Adscientificindex](/assets/images/banner_click.png)
* Total Citation Counts Rankings
World Ranking
125,438
Country Ranking
5,537
Institution Ranking
111
Kevin Spink
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,880
2,191
0.278
![](https://cdn.adscientificindex.com/logos/11346.jpg)
Social influences and physical activity
* Total Citation Counts Rankings
World Ranking
129,751
Country Ranking
5,709
Institution Ranking
112
Lawrence W Martz
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,645
1,717
0.225
![](https://cdn.adscientificindex.com/logos/11346.jpg)
hydrology
geography
climate change
GIS
* Total Citation Counts Rankings
World Ranking
130,982
Country Ranking
5,761
Institution Ranking
113
Alain Pietroniro
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,581
2,610
0.344
![](https://cdn.adscientificindex.com/logos/11346.jpg)
Hydrology and Water Resources Engineering
* Total Citation Counts Rankings
World Ranking
132,094
Country Ranking
5,800
Institution Ranking
116
Wolfgang Walz
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,521
922
0.123
* Total Citation Counts Rankings
World Ranking
131,037
Country Ranking
5,766
Institution Ranking
114
Andrei Smolyakov
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,578
2,719
0.359
* Total Citation Counts Rankings
World Ranking
131,504
Country Ranking
5,778
Institution Ranking
115
Volker Gerdts
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,554
3,765
0.498
* Total Citation Counts Rankings
World Ranking
134,882
Country Ranking
5,923
Institution Ranking
117
William P Patterson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,372
2,550
0.346
![](https://cdn.adscientificindex.com/logos/11346.jpg)
Climate
isotope chemistry
geochemistry
hydrology
biology
* Total Citation Counts Rankings
World Ranking
135,831
Country Ranking
5,964
Institution Ranking
118
Bunyamin Tar An
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,324
4,372
0.597
* Total Citation Counts Rankings
World Ranking
136,381
Country Ranking
5,992
Institution Ranking
119
William Kerr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,298
1,841
0.252
![](https://cdn.adscientificindex.com/logos/11346.jpg)
International Trade Policy
Agricultural Trade
Food and Agricultural Policy
* Total Citation Counts Rankings
World Ranking
138,044
Country Ranking
6,056
Institution Ranking
120
Randy W Purves
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,216
1,929
0.267
* Total Citation Counts Rankings
World Ranking
138,344
Country Ranking
6,067
Institution Ranking
121
Roland F Dyck
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,202
1,658
0.230
* Total Citation Counts Rankings
World Ranking
139,599
Country Ranking
6,108
Institution Ranking
123
Grzegorz Sawicki
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,140
1,646
0.231
![](https://cdn.adscientificindex.com/logos/11346.jpg)
oxidative stress
pharmacology
proteomics
* Total Citation Counts Rankings
World Ranking
143,314
Country Ranking
6,263
Institution Ranking
125
Timothy D Jardine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,968
3,884
0.557
* Total Citation Counts Rankings
World Ranking
143,299
Country Ranking
6,261
Institution Ranking
124
Alan Rosenberg
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,969
2,543
0.365
![](https://cdn.adscientificindex.com/logos/11346.jpg)
Pediatric Rheumatology
* Total Citation Counts Rankings
World Ranking
145,436
Country Ranking
6,354
Institution Ranking
127
Barbara J Phillips
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,869
3,132
0.456