Researchers found a hidden mathematical rule in tree-like art. Branch thickness follows a predictable ratio, making trees recognizable.

The scale invariance in branch diameter dictates how much smaller a limb should be as it branches and how much investment a tree makes in a few thick branches versus many thin ones. Trees have evolved ...

As the trend towards the international dispersion of certain value chain activities produces challenges, discover policies to meet these Tax transparency and international co-operation Enhanced ...