Abstract: Alphabetic codes and binary search trees are combinatorial structures that abstract search procedures in ordered sets endowed with probability distributions. In this paper, we design new ...

A security vulnerability has been disclosed in the popular binary-parser npm library that, if successfully exploited, could result in the execution of arbitrary JavaScript. The vulnerability, tracked ...

Karen is a writer and editor with more than 25 years of print and digital media experience working in newspapers, educational publishing, marketing, nonprofits, and magazines. If you want to bring a ...

For Alex Kent, taking pictures of some of the city’s beautiful trees was humbling. The best time to capture them, he said, is sunrise or sunset. By Shauntel Lowe Good morning. It’s Friday. Today we’ll ...

The canopy created by tall trees as seen from below at Muir Woods National Monument, Mill Valley, California, September 5, 2016. (Photo via Smith Collection/Gado/Getty Images). Nearly nine out of 10 ...

Warning: This graphic requires JavaScript. Please enable JavaScript for the best experience. Trees have long been appreciated for adding beauty, shade and a sense of ...

Stars are the fundamental building blocks of our universe. Most stars host planets, like our sun hosts our solar system, and if you look more broadly, groups of stars make up huge structures such as ...

How do you count rooted planar n n-ary trees with some number of leaves? For n = 2 n = 2 this puzzle leads to the Catalan numbers. These are so fascinating that the combinatorist Richard Stanley wrote ...

A tree planting ceremony was held Friday morning in downtown Los Angeles after a chainsaw-wielding suspect cut down several trees during an overnight vandalism spree last month. "We not only plant ...