Members Begin Terms as Sigma Xi Leaders

July 01, 2020

With the start of Fiscal Year 2021 on July 1, 2020, the following members are beginning new terms or continuing their roles as elected Sigma Xi leaders today. Thank you to these members for volunteering their time, energy, and expertise to Sigma Xi's mission of enhancing the research enterprise, fostering integrity in research, and promoting the public understanding of science. 


Sonya T. Smith
Professor, Department of Mechanical Engineering
Howard University

Robert T. Pennock
University Distinguished Professor
Michigan State University

Past President

Geraldine L. Richmond
Presidential Chair in Science and Professor of Chemistry
University of Oregon

David W. Baker
Vice President
Sunrun, Inc.

Regional Directors


Daniel I. Rubenstein
Mid-Atlantic Regional Director
Princeton University

Deborah J. Good 
Mid-Atlantic Associate Director
Virginia Tech

The Mid- Atlantic Region Consists of: Delaware, District of Columbia, Maryland, New Jersey, Pennsylvania, Virginia, & West Virginia

North Central

Carlo U. Segre 
North Central Regional Director
Illinois Institute of Technology

Thomas H. Lane 
North Central Associate Director
Dow Corning Corporation

The North Central Region Consists of: Illinois, Indiana, Iowa, Michigan, Minnesota, Ohio, & Wisconsin


Eugene S. Santos, Jr.
Northeast Regional Director
Dartmouth College

Theodora Pinou
Northeast Associate Director 
Western Connecticut State University

The Northeast Region Consists of: Connecticut, Maine, Massachusetts, New Hampshire, New York, Rhode Island, Vermont, Ontario, Quebec, & Newfoundland


HollyAnn Harris 
Northwest Regional Director
Creighton University

Allen A. Thomas 
Northwest Associate Director
University of Nebraska at Kearney

The Northwest Region Consists of: Alaska, Colorado, Idaho, Montana, Nebraska, Nevada, North Dakota, Oregon, South Dakota, Utah, Washington, Wyoming, British Columbia, Alberta, & Manitoba


Dana Ann Baum
Southeast Regional Director
St. Louis University

Michael C. Madden
Southeast Associate Director
U.S. Environmental Protection Agency

The Southeast Region Consists of: Alabama, Arkansas, Florida, Georgia, Kentucky, Louisiana, Mississippi, Missouri, North Carolina, South Carolina, Tennessee, & Puerto Rico.


Vilupanur A. Ravi 
Southwest Regional Director
California State Polytechnic University

Alli M. Antar 
Southwest Regional Associate Director
Baylor College of Medicine

The Southwest Region Consists of: Arizona, California, Hawaii, Kansas, New Mexico, Oklahoma, Texas, & Mexico

Constituency Directors

Area Groups, Industries, State & Federal Laboratories Constituency Group

Cristina C. Gouin  
Area Groups, Industries, State & Federal Laboratories Constituency Director
USDA Animal Plant Health Inspection Service

Frank DelRio 
Area Groups, Industries, State & Federal Laboratories Constituency Associate Director
National Institute of Standards and Technology

Baccalaureate Colleges Constituency Group

Amy Stockert 
Baccalaureate Colleges Constituency Director
Ohio Northern University

Pamela Kerrigan 
Baccalaureate Colleges Associate Director
College of Mount Saint Vincent

Canadian/International Constituency Group

Richard Boudreault 
Canadian/International Constituency Director
Aerospace Technologies, Inc.

Digvir S. Jayas 
Canadian/International Constituency Associate Director
University of Manitoba

Comprehensive Colleges & Universities Constituency Group

Steve W. Martin 
Comprehensive Colleges & Universities Constituency Director
Iowa State University

Marijo Kent-First 
Comprehensive Colleges & Universities Constituency Associate Director
Florida A & M University

Membership-at-Large Constituency Group

Emma Perry
Membership-at-Large Constituency Group Director

Unity College

Heather Arnett
Membership-at-Large Constituency Group Associate Director (interim)
University of Charleston

Research & Doctoral Universities Constituency Group

Tammy A. Maldonado 
Research & Doctoral Universities Constituency Director
University of Colorado

Justin L. Wilson 
Research & Doctoral Universities Constituency Associate Director
American Institutes for Research

More About Sigma Xi: Sigma Xi, The Scientific Research Honor Society is the world’s largest multidisciplinary honor society for scientists and engineers. Its mission is to enhance the health of the research enterprise, foster integrity in science and engineering, and promote the public understanding of science for the purpose of improving the human condition. Sigma Xi chapters can be found at colleges and universities, government laboratories, and industry research centers around the world. More than 200 Nobel Prize winners have been members. The Society is based in Research Triangle Park, North Carolina. On Twitter: @SigmaXiSociety