A collage of photographs of the Colorado pine (Pinus edulis), also known as the pinyon pine, contributed to SEINet, an NSF-supported resource. New NSF-supported research using tree rings shows that in ...

Abstract. The Wiener index 𝑊(𝐺) of a connected graph 𝐺 is defined as the sum of distances between all unordered pairs of vertices of 𝐺. As a variation of the Wiener index, the reverse Wiener index ...

Bulletin (Académie serbe des sciences et des arts. Classe des sciences mathématiques et naturelles. Sciences mathématiques), No. 28 (2003), pp. 31-40 (10 pages) Let the Laplacian characteristic ...

DURHAM, N.C. – What do a tree and the Eiffel Tower have in common? According to a Duke University engineer, both are optimized for flow. In the case of trees, the flow is of water from the ground ...

What do a tree and the Eiffel Tower have in common? According to a Duke University engineer, both are optimized for flow. In the case of trees, the flow is of water from the ground throughout the ...

Plus, get the best of BroadwayWorld delivered to your inbox, and unlimited access to our editorial content across the globe. Jesse Sakari Hyttinen has announced the release of his new book, Tree ...

In 1997, I had a vision that I drew out in a flash that would change my life. It depicted the evolution of complexity that started with energy and grew into the dimensions of matter, life, mind, and ...