At 1 p.m., Efron will give a science-related talk titled, “Nature: They Ain’t Making It Like They Used To.” At 7 p.m., he will discuss the tent-city movement in “Occupy Israel? Notes from a Year of Social Protest.” Both events will be in Ekstrom Library’s Chao Auditorium.

Efron, senior fellow at Israeli political think tank Shaharit, is a former Tel Aviv-Jaffa City Council member who serves on the Committee on Genetically Modified Organisms for the country’s Ministry of Agriculture. He teaches at Bar Ilan University, where he founded a graduate program in science, technology and society.  His books include “Real Jews: Secular Versus Ultra-orthodox, and the Struggle for Jewish Identity in Israel” and “Judaism and Science: An Historical Introduction.”

Sponsors are the Jewish Community of Louisville, Jewish studies committee of UofL’s humanities division, Naamani memorial lecture committee, the social change minor and the College of Arts and Sciences’ international, diversity and outreach programs office.