Productivity Rankings is a unique service offered only by “AD Scientific Index”. This is a ranking system derived from the i10 index in order to show the productivity of the scientist in publishing scientific articles of value. Productivity Rankings is an instrument that lists productive scientists in a given area, discipline, university, and country and can guide the development of meaningful incentives and academic policies. The world rankings, regional rankings, and university rankings of scientists in this table are developed based on the total i10 index. Click for "last 6 years' i10 index". Also see: Universities Rankings 2024 (Sort by : Total i10 Index) and Universities Rankings 2024 (Sort by : Last 6 Years i10 Index)
![Barry A Vann](https://cdn.adscientificindex.com/pictures/8d/4597634.jpg)
historical geography
symbolic interactionism
environmental perceptions
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
1
0.200
![Brian Duvick](/user/assets/images/profile/no-profile-photo.png)
Ancient History
Late Antiquity
Greek Philosophy
Christian Theology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
![Shane William Gunn](/user/assets/images/profile/no-profile-photo.png)
Theology
Philosophy
Epistemology
Mathematics
Physics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Barry A Vann
Colorado Christian University
Lakewood, United States
![United States](/flags/us.png)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
1
0.200
historical geography
symbolic interactionism
environmental perceptions
Brian Duvick
University of Colorado Colorado Springs
Colorado Springs, United States
![United States](/flags/us.png)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Ancient History
Late Antiquity
Greek Philosophy
Christian Theology
Shane William Gunn
Colorado Christian University
Lakewood, United States
![United States](/flags/us.png)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Theology
Philosophy
Epistemology
Mathematics
Physics