Abstract: I welcome you to the fourth issue of the IEEE Communications Surveys and Tutorials in 2021. This issue includes 23 papers covering different aspects of communication networks. In particular, ...

As a "thank you" to all the thousands of users who supported QuadSpinner in its infancy, we have open sourced our material, MetaNode, and function library under the Creative Commons Attribution 4.0 ...

Within each content area, there are one or more tutorials. Each tutorial consists of lessons. Each lesson should be a page detailing the concept being taught, along with sample code. Lesson and page ...

Curator, Starr Figura: Here's Lee Krasner: Artist, Lee Krasner: I think my initial contact with the canvas—because some gesture occurs—some sweep across the canvas before I take off, so to speak. And ...

Narrator: The artist Lee Krasner made Gaea in 1966, using oil paint on canvas. The work measures 5 feet, 9 inches high; and 10 feet, 6 inches wide. In metric units, it is about 175 centimeters high ...