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
1,180
Country Rank
513
Institution Rank : 2
![](https://cdn.adscientificindex.com/logos/307.png)
![United States](/flags/us.png)
![Sylvia Smoller](https://cdn.adscientificindex.com/pictures/44/792102.jpg)
epidemiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
161,574
57,967
0.359
* Total Citation Counts Rankings
World Rank
261,459
Country Rank
90,307
Institution Rank : 84
![](https://cdn.adscientificindex.com/logos/307.png)
![United States](/flags/us.png)
![Chenshu Zhang](/user/assets/images/profile/no-profile-photo.png)
Public Health
Behavioral Science
Behavioral Economics
Behavioral Addiction
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,750
1,344
0.358
* Total Citation Counts Rankings
World Rank
295,012
Country Rank
100,043
Institution Rank : 95
![](https://cdn.adscientificindex.com/logos/307.png)
![United States](/flags/us.png)
![Tia Powell](/user/assets/images/profile/no-profile-photo.png)
Bioethics
Public Health
Dementia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,258
1,295
0.397
* Total Citation Counts Rankings
World Rank
369,614
Country Rank
121,035
Institution Rank : 112
![](https://cdn.adscientificindex.com/logos/307.png)
![United States](/flags/us.png)
![Emmeline Ayers](/user/assets/images/profile/no-profile-photo.png)
aging
pre-dementia syndromes
epidemiology
falls
gait
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,467
2,061
0.835
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,180
![United States](/flags/us.png)
513
![](https://cdn.adscientificindex.com/logos/307.png)
2
Sylvia Smoller
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
161,574
57,967
0.359
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
261,459
![United States](/flags/us.png)
90,307
![](https://cdn.adscientificindex.com/logos/307.png)
84
Chenshu Zhang
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,750
1,344
0.358
![](https://cdn.adscientificindex.com/logos/307.png)
Public Health
Behavioral Science
Behavioral Economics
Behavioral Addiction
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
295,012
![United States](/flags/us.png)
100,043
![](https://cdn.adscientificindex.com/logos/307.png)
95
Tia Powell
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,258
1,295
0.397
![](https://cdn.adscientificindex.com/logos/307.png)
Bioethics
Public Health
Dementia
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
369,614
![United States](/flags/us.png)
121,035
![](https://cdn.adscientificindex.com/logos/307.png)
112
Emmeline Ayers
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,467
2,061
0.835
![](https://cdn.adscientificindex.com/logos/307.png)
aging
pre-dementia syndromes
epidemiology
falls
gait