Welcome to AD Scientific Index. The international independent ranking organisation AD Scientific Index is more than an ordinary "Ranking". The "AD Scientific Index" analyses the academic work of scientists using the H-index, i10 index and number of citations, and provides results that can be used to evaluate the productivity and efficiency of individuals and institutions. In addition to ranking according to "total H-index" for individuals and institutions, you can also see the ranking and analyses according to "last 6 years H-index", "total i10 Productivity index", "last 6 years i10 Productivity index", "total citations" and "last 6 years citations" only in "AD Scientific Index". See also: Subject Rankings, University Subject Rankings and  Universities Rankings.   Click here for individual or institutional registration.

Total 2 scientist
* Total H Index Rankings
World Rank
255,790
Country Rank
79,786
Institution Rank
312
United States
Shahin Ayazi
Gastroesophageal reflux
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
29
19
0.655
* Total H Index Rankings
World Rank
1,294,766
Country Rank
311,691
Institution Rank
1,004
United States
Nicholas Bartell
Gastroenterology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
Total H Index AD Scientific Index - World Scientists Rankings - 2024 H Index Metrics
University Rank Country Rank Region Rank World Rank Name Country University / Institution Subject
Research Areas
Total Last 6 year Last 6 year/total
312 79,786 90,326 255,790 United States United States University of Rochester University of Rochester Medical and Health Sciences / Gastroenterology

Gastroesophageal reflux |

29 19 0.655
1,004 311,691 348,091 1,294,766 United States United States University of Rochester University of Rochester Medical and Health Sciences / Gastroenterology

Gastroenterology |

5 5 1.000