From Estonia to Antarctica, this once-pagan symbol has taken on many strange forms. In December 1848, an illustration showed Queen Victoria, Prince Albert, and their children admiring a Christmas tree ...

“I saw in Louisiana a live-oak growing / All alone stood it, and the moss hung down from the branches.” —Walt Whitman, Leaves of Grass, 1860-61 More than 150 years after Whitman wrote those lines, the ...

Snakes can not only climb trees, but the process through which they climb it– is simply one of the scariest ones! A video was shared on the internet, which showed a snake, allegedly the world’s ...

Steve Nix is a member of the Society of American Foresters and a former forest resources analyst for the state of Alabama. According to National Wildlife Federation, there are two varieties of Douglas ...

Since the original R-tree data structure has been initially proposed in 1984, there have been many variations introduced over the years optimized for various use cases [1]. However, when working in ...

Pharmacoeconomics Decision Tree Model is a tool designed to help healthcare professionals, researchers, and students perform cost-effectiveness analysis using decision tree models. It allows users to ...

Abstract: Online collision-free trajectory generation within a shared workspace is fundamental for most multirobot applications. However, many widely-used methods based on model predictive control ...

Abstract: Cooperative co-evolution (CC) is an efficient and practical evolutionary framework for solving large-scale optimization problems. The performance of CC is affected by the variable ...

The Christmas tree is a wonderful and historic tradition that we don our homes with every Christmas to fill us with spirit and to lay our gifts underneath. However, it is the birth of our Lord and ...