A University of Iowa Alumni Association event April 22 focuses on what children learn by watching television and other media.

Update 4/9 9:09 a.m.-Postponed. UI Facilities Management Landscape Services staff intend to conduct a prairie burn Wednesday, April 9, starting at 8:30 a.m., weather permitting. The prairie burn will occur adjacent to Hawkins Drive and west of the Ronald McDonald House.

UI alumnus and craft-chocolate maker Michael Mast will speak about his new cookbook Thursday, April 10, at 6:30 p.m. The first 100 people to arrive at Shambaugh Auditorium for the presentation will receive a small sample of Mast Brothers chocolate.

The University of Iowa Writers’ Workshop will present a free reading by poet, performer, and librettist Douglas Kearney at 8 p.m., Monday, April 14, in the Frank Conroy Reading Room of the Glenn Schaeffer Library, adjacent to the Dey House.

The University of Iowa will host a range of activities and events to commemorate Earth Month, which runs for most of April. A selection is highlighted below for the media, while the events, where noted, are open to the public.

UI graduate student Andrew Nelson examined the effectiveness of several methods of measuring radium levels in flowback water, including gamma-ray spectroscopy, emanation techniques, and EPA method 903.0.

The process of 3-D printing of living organs will be the subject of the 2014 Paul D. Scholz Symposium on Technology and its Role in Society to be held from 5 to 5:50 p.m. Thursday, April 10, in Lecture Hall 1, Van Allen Hall.

University of Iowa student Erin Church discusses the undergraduate research opportunities she's had working with associate professor Teresa Treat in the UI Department of Psychology.

Carl and Claire Stuart’s shared journey began on the University of Iowa campus. Nearly 45 years and thousands of miles later, that journey continues.

The University of Iowa School of Music will present the Iowa Brass Quintet’s spring concert at 7:30 p.m. Tuesday, April 15, in Riverside Recital Hall on the UI campus. The concert is free and open to the public.

American painter Lisa Sanditz, visiting artist in painting and drawing in the University of Iowa School of Art and Art History, will give a public lecture at 7 p.m. Thursday, April 10, in Room 116 of Art Building West.

This week the University of Iowa will formally unveil a new Mobile Museum, a joint project of the UI Pentacrest Museums and the Office of the State Archaeologist.