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Lecturer III
Donald Zapien
Chemistry · Slippery Rock University
Beats 27.4% of professors on The Curve.
ELO
1,457
Global rank
#1,235,013
of 1,701,525
Percentile
27.4%
Avg. rating
3.2
out of 5
Difficulty
3.1
out of 5
Reviews
58
Among all 1,701,525 professors
Among professors at Slippery Rock University