Caltech scientists have found a fast and efficient way to add up large numbers of Feynman diagrams, the simple drawings ...

The main purpose of this paper is to explain and demonstrate the complex structure that links each variable within carbon emission and tourist travel to Karimunjawa, Indonesia through the causal loop ...

The feasibility of operationalizing the process of translating a signed digraph (or causal diagram) to an associated differential equation model is demonstrated. Starting with the signed digraph the ...