$Leo$ Pi Mu Epsilon Secretary-Treasurer Leo J. Schneider died suddenly on June 6. We will miss him terribly. Professor Schneider ran Pi Mu Epsilon practically single-handedly and to many mathematicians and students around the country he was Pi Mu Epsilon. He was involved in every aspect of the organization and worked tirelessly to keep information flowing between the Council, the Chapters, and the mathematics community, performing these tasks in a way that made the job look easy. Additional information about Professor Schneider and his career can be found at the John Carroll University Department of Mathematics and Computer Science Website: http://www.jcu.edu/math/remembering_Leo.htm.

During a transition period, Professor Schneider's email address (leo@jcu.edu) will continue to be monitored, and registrations for MathFest will be processed as usual. However, we ask that you begin using a new email address for correspondence with Pi Mu Epsilon:
secretary-treasurer@pme-math.org .

All MathFest-related questions should be directed to mathfest@pme-math.org .

PME to hold its 2010 national meeting at MAA MathFest,

Pittsburgh, Pennsylvania, August 4-7, 2010

(Contact info: mathfest@pme-math.org)

$Pittsburgh$

Photo Credit: Visit Pittsburgh

Conference highlights:

MAA-PME Student Reception, Wednesday, August 4, 4:30 p.m. – 5:30 p.m.
Student presentations, afternoons of Thursday, August 5 and Friday, August 6 and morning of Friday, August 6. Click here to see the complete program of speakers.
The J. Sutherland Frame Lecture, Friday, August 6, 8:00 p.m. – 8:50 p.m.

$dean$

This year's lecture will be given by Professor Nathaniel Dean, Department of Mathematics at Texas State University-San Marcos, who will speak on

"Incomprehensibility"

Abstract: After data collection the analysis of complex systems is usually accomplished by analyzing the data using various statistical approaches. However, to understand the structural interactions between entities (for example, people, objects or groups), systems of interactions can be modeled as graphs linking nodes (entities) with edges that represent various types of relations between the entities. Then the graph can be visualized, explored and analyzed using a variety of mathematical algorithms and computer tools. In this talk we discuss the limitations of this approach, why some graphs cannot be visualized, and hence why certain data are visually incomprehensible.

Questions concerning PME activities at MathFest should be directed to mathfest@pme-math.org

PME Anniversary Button Contest

Thank you to all the Chapters that entered the PME 100th Anniversary Button Contest. The Council selected the entries from the following chapters as finalists:

Florida Epsilon - South Florida University
Ohio Sigma - Case Western Reserve University
Oregon Delta – Western Oregon University
Michigan Lamda – Aquinas College

These four designs will be unveiled at the Student Reception at Mathfest and will be posted on the website after that. The final design will be selected by a vote of all chapters in October.

What is Pi Mu Epsilon?

Pi Mu Epsilon, Inc (PME), is the National Mathematics Honor Society.

Founded on May 25, 1914 at Syracuse University, PME currently has over 300 chapters at colleges and universities throughout the United States.

The purpose of the Society is to promote scholarly activity in mathematics among the students in academic institutions.

The Spring 2010 Newsletter is now posted online. Click here to obtain your copy!

**The Fall 2009 Pi Mu Epsilon Journal is now available.**

	Subscriptions *PME Journal* Problem Section An interview with Paul S. Bruckman**

PME to hold its 2010 national meeting at MAA MathFest,

Pittsburgh, Pennsylvania, August 4-7, 2010

(Contact info: mathfest@pme-math.org)