![HarrisGregory_square HarrisGregory_square](/images/default-source/sigma-images/leadership/harrisgregory_square.tmb-thumb160.jpg?sfvrsn=2ad6ae35_1)
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Greg Harris, Ph.D.
Chapter President
Assistant Professor of Chemical Engineering, University of Cincinnati
harrigy@ucmail.uc.edu
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Katherine E. Vest, Ph.D.
Chapter President-elect
Assistant Professor of Molecular & Cellular Biology, University of Cincinnati
vestke@ucmail.uc.edu
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![Cuppoletti_action Cuppoletti_action](/images/default-source/sigma-images/leadership/cuppoletti_action.tmb-thumb160.jpg?sfvrsn=3f4e89e7_1)
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John Cuppoletti, Ph.D.
Chapter Past President
Professor Emeritus, University of Cincinnati
cuppolj@ucmail.uc.edu
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![Vonderheide Vonderheide](/images/default-source/sigma-images/fy2020-leadership/vonderheide.tmb-thumb160.jpg?sfvrsn=ff34177f_1)
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Anne Vonderheide, Ph.D.
Secretary
Associate Professor and Undergraduate Director of Chemistry, University of Cincinnati
anne.vonderheide@uc.edu
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![MatterHeadshot_square MatterHeadshot_square](/images/default-source/sigma-images/leadership/matterheadshot_square.tmb-thumb160.jpg?sfvrsn=c02683d9_1)
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Stephen F. Matter, Ph.D.
Treasurer
Associate Professor of Biological Sciences, University of Cincinnati
mattersf@uc.edu
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![Hanson-Square Hanson-Square](/images/default-source/sigma-images/leadership/hanson-square.tmb-thumb160.jpg?sfvrsn=ec82d662_1)
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Margaret Hanson, Ph.D.
Chair, Awards
Dean and Professor, College of Arts and Sciences, University of Cincinnati
margaret.hanson@uc.edu
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![Crowley Headshot Square Crowley Headshot Square](/images/default-source/sigma-images/leadership/crowley-headshot-square.tmb-thumb160.jpg?sfvrsn=da6d5164_1)
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Brooke E. Crowley, Ph.D.
Chair, Membership
Professor of Geology, University of Cincinnati
brooke.crowley@uc.edu
brooke.crowley@uc.edu
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![Benoit Headshot Square Benoit Headshot Square](/images/default-source/sigma-images/leadership/benoit-headshot-square.tmb-thumb160.jpg?sfvrsn=a63afa1d_1)
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Josh Benoit, Ph.D.
Chair, Programs
Associate Professor of Biological Sciences, University of Cincinnati
joshua.benoit@uc.edu
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![Haworth_2023_Square Haworth_2023_Square](/images/default-source/sigma-images/leadership/haworth_2023_square.tmb-thumb160.jpg?sfvrsn=80566cfc_1)
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Kevin Haworth, Ph.D.
Chair, Communications
Associate Professor of Internal Medicine, University of Cincinnati
hawortkn@ucmail.uc.edu
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![Dietsch-Square Dietsch-Square](/images/default-source/sigma-images/leadership/dietsch-square.tmb-thumb160.jpg?sfvrsn=641aa288_1) |
Craig Dietsch, Ph.D.
At-Large Executive Committee Member (Full Member)
Associate Professor of Geology, University of Cincinnati
dietscc@ucmail.uc.edu
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![Pixley_Sarah-FinalSquare Pixley_Sarah-FinalSquare](/images/default-source/sigma-images/leadership/pixley_sarah-finalsquare.tmb-thumb160.jpg?sfvrsn=cece30a8_1) |
Sarah Pixley, Ph.D.
At-Large Executive Committee Member (Full Member)
Associate Professor of Molecular and Cellular Physiology, University of Cincinnati
sarah.pixley@uc.edu
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![Hardin - FY22 President Hardin headshot](/images/default-source/sigma-images/fy2020-leadership/hardin-headshot.tmb-thumb160.png?sfvrsn=c87962ed_1) |
Kelly Crowe, Ph.D.
At-Large Executive Committee Member (Full Member)
Assistant Professor of Biology, Xavier University
crowek7@xavier.edu
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