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UT Knoxville Sigma Xi Chapter

Sigma Xi’s Mission is to enhance the health of the research enterprise, foster integrity in science and engineering, and promote the public’s understanding of science for the purpose of improving the human condition.

News & Announcements

Distinguished Lecture Series Featuring Dr. Cynthia Phillips

Cynthia Phillips, senior scientist in the Center for Computing Research at Sandia National Laboratories, will be the next speaker in the Distinguished Lecture Series. Phillips’ presentation entitled “Sensor Placement for Municipal Water Networks” is hosted by Sigma-Xi and the Tickle College of Engineering. The series is free and open to the public.

Where: Room 622, Min Kao Electrical Engineering and Computer Science Building
When: 4 p.m.
More information >>

Freeburg’s Study Published in Scientific Reports

Todd Freeberg, Sigma Xi treasurer and professor of psychology, recently published a new study showing that diversity within a wild songbird community can enhance its members’ access to food. The research was published recently in Scientific Reports, a division of the journal Nature. Read more >>

Send Us Your Suggestions

The chapter is now seeking suggestions for activities or programs the chapter can facilitate or partner to help facilitate. Suggestions can be sent to sigmaxi@utk.edu.

Sigma Xi Officers

The UT Knoxville chapter of Sigma Xi, the Scientific Research Society, recently elected officers and is exploring options to promote the society’s goals.

Officers for the 2016-2017 academic year are:

Terry C. Hazen is the UT-ORNL Governor’s Chair for Environmental Biotechnology and holds a joint appointment with the College of Engineering’s Civil and Environmental Engineering Department and the College of Arts and Sciences’ departments of Microbiology and Earth and Planetary Sciences. He is also director of the Institute for Secure and Sustainable Environment. Hazen works closely with the UT-ORNL Joint Institute for Biological Sciences and the Center for Environmental Biotechnology as well as working with the Biosciences Division at Oak Ridge National Laboratory. He is a fellow of the American Academy of Microbiology and the American Association for the Advancement of Science, and has authored more than 332 scientific publications. He has been a member of Sigma XI since 1976.


Todd Freeberg, professor of psychology and an adjunct member of the Department of Ecology and Evolutionary Biology at UT Knoxville, received his PhD from Indiana University. His area of research tests how social processes influence vocal signaling in animals.

Louise C. Nuttle is the director of the Faculty Development Team within UT’s Office of Research and Engagement. After earning her doctorate in physiology and biophysics from Case Western Reserve University in Cleveland, Ohio, Nuttle completed a postdoctoral fellowship in pharmacology and toxicology and worked as an assistant professor in the Department of Physiology and Biophysics at the University of Mississippi Medical Center in Jackson, Mississippi.  Nuttle began her career in research administration and development there before moving to Tennessee and ETSU in 2005 where she served as the associate director for the ETSU Research Foundation prior to joining the Office of Research and Sponsored Programs in 2007.


Membership in Sigma Xi is by nomination, in conferred in one of two ways, and is not dependent on the nominee having a specific education degree. Students and non-students follow the same review process. Become a member.

Contact Information

Associate Vice Chancellor for Research Development
Office of Research & Engagement
1534 White Avenue
Knoxville, TN 37996-1529
Phone: (865) 974-0437
Fax: (865) 974-7400
Email: avcrd@utk.edu